Group Membership Method Resembles Previous Bottlenose Dolphin Research

Using The Group Membership Method Resemble Those Found By...
Results in the present study produced using the group membership method resemble those found by
Lusseau et al. (2003) in which the Doubtful Sound population could be divided into three sub–
groups. The composition of groups however is somewhat different. This is in part due to different
individuals being present / alive during their study than in the current study. Where all individuals
present in both studies are placed across all three defined groups in Lusseau et al.'s (2003) study, all
but Kringel fall into the same single group in the present study. This suggests that, while the overall
sub–group structure may have been maintained over time, there is a degree of fluidity among
members of sub–groups. This is the very nature of a fission–fusion society, where group
composition is dynamic over time (Grellier et al. 2003). The three sub–groups may be an apparently
permanent feature of the population when using the group membership method, with the fission–
fusion nature of bottlenose dolphins defining the composition of each group through time. It must be
noted however that Lusseau et al.'s (2003) study was over a period of seven years, where 546 days
were spent on the water. Due to the immense differences in field effort, direct comparisons are made
with caution. Previous pilot work, which spanned only 6 days, also yielded similar results using the
group membership method.
The seven sub–groups defined for the whole population using indices from the time–based method
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Bottlenose Dolphin Research Paper
Tursiops truncatus (Bottlenose Dolphin)
Body Structure
Bottlenose Dolphins are a very interesting animal. They have a fusiform (Spindle shaped) body that
allows them to move quickly in the water. Because of the Dolphins' shape they have bilateral
symmetry. They also have a dorsal fin, flippers, and a fluke. However, Bottlenose Dolphins do not
have ears on the outside of their bodies, hair, or hind limbs. The color of this type of dolphin is
usually a light grey color to a black. Their stomach is white and sometimes has a pink hue. One
physical adaptation these dolphins have is a telescoped skull. The skull is like this because it allows
them to breathe more easily while swimming. Bottlenose Dolphins also have blubber that they use
as insulation and vascular shunts that allow them to have cooling for certain types of organs and
tissues in their bodies. Finally, Bottlenose Dolphins have sharp teeth that let them grasp onto their
prey, so their tongue can push the prey down the dolphin's throat. Bottlenose Dolphins have a range
mass of 260 to 500kg which is 572.69 to 1101.32 in pounds. The average mass of the Bottlenose
Dolphin is 400kg. Their average mass in pounds is 881.06.
Diet ... Show more content on Helpwriting.net ...
One way they get their food is by working together. Another way is by trapping their prey onshore.
However, they may trap themselves onshore in the process. Bottlenose Dolphins can also use
echolocation (using sound to locate things) to get food. Instead of using echolocation, some dolphins
use passive listening to get their food. The type of food available to a Bottlenose Dolphin depends
on its location. Bottlenose Dolphins eat around 4 to 9 percent of their body weight each day. The
predators of Bottlenose Dolphins are large species of sharks and killer

Diverse Mating Strategies Among Different Species
Diverse Mating Strategies Among Different Dolphin Species
There are a variety of different mating strategies among different male dolphins species. "Male
mating strategies and forms of competitive interaction among male cetaceans lead to the
development of sexually dimorphic features such as prominent postanal humps, reproductive
adaptation such as large testis size, and retained bodily scarring caused by interactions with
conspecifics." (Murphy, 2005) Cetacean have been noted to either have a polygynous or
polygynandrous mating system. (Murphy, 2005) These mating systems have led to a number of
different types of competition among males such as contest competition (where males limit the
access of other males to females by aggressive displays or fights) scramble competition
(competition to disperse and find sexually receptive females), endurance–rivalry competition
(competition to remain sexually active over a longer period of time), mate–choice competition
(competition in courtship), and sperm competition (competition between the sperm of 2 or more
males)." (Murphy, 2005) Individual males will use these different strategies depending on their
dominance in rank, size, age , and number and quality of reproductive females. (Murphy, 2005)
Contest competition and courtship competition have been documented in polygynous species such
as bottlenose dolphin (tursiops truncates), and humpback whales.( Murphy, 2005) "Sexual
dimorphism in size, weaponry (teeth and husks), and

A Research Study On Bottlenose Dolphins
Bottlenose dolphins are among the most familiar cetaceans, just as whales. The Bottlenose dolphin
is a primitive member of the subfamily Delphinine. Bottlenose dolphins are grey, varying from dark
grey at the top near the dorsal fin to very light grey and almost white at the underside. There are two
ecotypes of bottlenose dolphins the coastal and the offshore. The Coastal dolphin has a small body
and large flippers to increase agility and heat dissipation. They have a limited movement into
offshore waters and like shallow warm water near the shore. Coastal dolphins for the most part
remain in their region. The Offshore dolphin has a large body to help conserve heat and defend itself
against predators. They are less restricted in range and movement and like deep, cold waters.
Offshore dolphins in the North Atlantic have migratory patterns that follow prey distribution.
Bottlenose dolphins live in groups typically of 10–30 members, called pods, but group size varies
from single individuals up to more than 1,000. In a case study performed by Randall Wells who is
the leader of the longest study of dolphin population since 1970, it was discovered that there are
three main factors that influence migration: Seasonal changes in prey location, predation pressure
and reproductive requirements. (Wells, 1980). In the fall dolphins follow mullet fish when they
migrate from the bays into the Gulf of Mexico to spawn. Dolphins experience the most predation
pressure during the summer when

Common Bottlenose Dolphin
The Common Bottlenose dolphin is one of many dolphins in our world today. According to
marinemammalsceince.org the scientific name for the common bottlenose dolphin is "Tursiops
truncates". Like many other mammals, this dolphin has been classified. According to San Francisco
State University Department of Geography "the kingdom Tursiops truncatus belongs to is Animalia,
the phylum to which they are grouped in is Chordata, and their class is Mammalia. The order in
which they belong to is cetacean, the suborder is odontoceti, their family is delphinidae, and the
genus is tursiops." Overtime, everything experiences change, even Tursiops truncates. "The order
Cetacean is further divided in two types known as the Odontoceti, or toothed whales, and the
Mysticeti, or baleen whales" (Cadelinia 5). The bottlenose dolphin falls into many categories.
According to San Francisco State University of Department of Geography "the bottlenose dolphin
falls into the oceanic family, which is comprised of thirty–four species. It has been concluded that
dolphins, porpoises, and whales evolved from Mesonychilds, a group of land–loving carnivores.
They have been estimated to have lived 60 to 35 million years ago. These mammals eventually
explored the seam resulting in the morphological and physiological changes of their bodies to suit
their newly discovered habitat"(Cadelinia 1). When looking at timeline pictures of these mammals,
it seems to be that the shape of their beak has changed overtime

Speech On Dolphins
Imagine you are a dolphin swimming happily in the ocean with the other dolphins. Suddenly, you
hear something terrible, and that makes you feel extremely uncomfortable. You swim towards
somewhere "safe" to get away from that terrible sound. However, when you get in, you realize it is a
trap! You have been caught! You might be sent to an aquarium or killed to be made into sushi. This
unfortunate fate is not a dream, but it is a sad reality for hundreds of thousands of innocent dolphins.
They are endangered of becoming extinct and their main predators are us, humans. Our society
needs to do something to preserve and protect our precious dolphins. Dolphins should be saved
because they are an endangered species, it is cruel to kill such ... Show more content on
Helpwriting.net ...
Dolphins are smart animals that could recognize themselves when looking at the mirror, whereas
other species would think that they are looking at another animal that had the same looking with
them. Dolphins also have the ability of understanding the language the scientists made to teach
them. Scientists mostly use two main make up language to teach them. One of them is to use whistle
sound to tell the dolphins to do some actions or pick an objects. Another is giving simple questions
to the dolphins and to let them answer whether "Yes" or "No". The dolphins had an average of
seventy–five percent correct responses to the question. Dolphins use a feature called echolocation to
create acoustical pictures of their surroundings. Although it's very hard to see any evidence of an
external ear opening, they still have a strong hearing. They confused the scientists by having a small
ear opening, but a great sense of hearing. The inner ear of the bottlenose dolphins is adapted for
hearing ultrasonic frequencies far beyond the range of human hearing. The bottlenose dolphins'
hearings are well over 100Hz, which is even greater than the hearings of the

Climate Change and the Bottlenose Dolphins
Our delicate eco–system is struggling to maintain it's complex equilibrium. The precarious state of
our oceans are largely attributed to the climate changes that are on going throughout earth. Along
with consistently rising global temperatures come many devastating consequences. Our atmosphere
is not the only aspect of our environment that is heating. Global warming is melting polar ice caps,
raising water levels in our oceans, and releasing carbon that has been trapped in ice for thousands of
years. The warmer air temperature is heating the surface waters of the ocean and creating more
frequent and more powerful storms. These warmer surface waters are being pushed under in the
ocean conveyor belt and the overall affect is a rise in overall ocean water temperatures. Climate
change has been estimated to effect 88% of cetaceans and endangering nearly 21%. More
specifically, each of these changes have harmful, potentially deadly and lasting effects on Bottlenose
Dolphins. Ultimately causing dangerous and toxic conditions leading to an increase of dolphin
strandings and death.
During the 1990s scientist were able to collect 5,000 different salinity profiles. From their findings
they were able to estimate a 20 percent increase in freshwater. Due to this increase there was a rise
of fresh water by 8,400 cubic kilometer, which can be compared to the volume of fresh water and
ice that is released in lower latitudes from the Arctic each year.
Sea

Bottlenose Dolphins
By: Eve Lingard & Lilly Peebles
Period 4– O'brien & Period 1– Prosser
Mount Baker Middle School
June 1, 2017
Abstract
This paper explores the life of bottlenose dolphins. In this paper, we explain that dolphins are
intelligent and general information about them. The research was conducted by analyzing books
about bottlenose dolphins and doing online research. From doing this research, I learned the truth
behind the myths of bottlenose dolphins and their anatomy.
Some common dolphin myths are "Ancient Greek and Ancient Roman legends tell of dolphins
befriending people, especially children, and even carrying drowning swimmers to safety. Fishermen
have long considered dolphins a sign of fair weather and good luck, and in their ... Show more
content on Helpwriting.net ...
These smart and intelligent animals are also sometimes spotted following fishing boats in hopes of
dining on leftovers. Bottlenose dolphins track down their prey through the use of echolocation.
"Bottlenose dolphins travel in groups and communicate with each other with a complex system of
squeaks and whistles. Bottlenose dolphins are well known as the intelligent and charismatic stars of
many aquarium shows. Their curved mouths give the appearance of a friendly, permanent smile, and
they can be trained to perform complex tricks."(National Geographic Creative.)
Bottlenose dolphins were once wildly hunted for their meat and oil, but today only limited dolphin
fishing occurs. Bottlenose dolphins use echolocation to track their prey and it bounces off the target
and returns to it's dolphin senders, revealing the location, size, and shape of the target.
They can go over 20 miles per hour when they work hard. The body shape of a dolphin helps it
swim fast. A dolphin's body is shaped like a tube that is pointed at both ends which helps them move
very fast. They are really fast and they are able to move around faster than any other

Orcinus Orca Essay
Introduction
About seventy million years ago, the terrestrial ancestors of dolphins and whales re–entered the
marine environment where life originally started. This had a profound effect on their locomotion,
diet social behavior and reproduction; for example the breathing system in the waters rendered
useless the olfaction of the cetaceans. In water, both animals were met with vision challenge, since
light doesn't travel very well in water; they had to adapt. They started to communicate through low
frequency sounds. Dolphins have evolved echolocation similar to sonars and bio sonar
communication method used by bats. Large baleen whales also evolved low frequency calls suited
for long distance communication: they produce and hear the low–frequency ... Show more content
on Helpwriting.net ...
About a one–third of the bottlenose dolphins from eastern Australiahave shark bite scars; which
suggest that they regularly meet predators. It has been thought that large whales migrate annually to
reach their calving grounds: areas where killer whale densities are low. The prey species are thought
to have evolved schooling behavior as a defense mechanism: where they swim together in large
groups (Balance, 2006). These behavioral adaptations according to Balance (2009) have highly
affected their: distribution, abundance, social structure, timing and reproduction modes, foraging
strategies and speciation

Dolphins Persuasive
Why Should We Save the Dolphins? Final Draft
By: Emily Chang
Class: 6(2)
Subject: English
Teacher: Mr. Kris(Smith)
Imagine you are a dolphin swimming happily in the ocean with the other dolphins. Suddenly, you
hear something terrible, and that makes you feel extremely uncomfortable. You swim towards
somewhere "safe" to get away from that terrible sound. However, when you get in, you realize it is a
trap! You have been caught! You might be sent to an aquarium or killed to be made into sushi. This
unfortunate fate is not a dream, but it is a sad reality for hundreds of thousands of innocent dolphins.
They are endangered of becoming extinct and their main predators are us, humans. Our society
needs to do something to preserve and protect our precious dolphins. Dolphins should be saved
because they are an endangered species, it is cruel to kill such intelligent animals and they are not
even safe to eat.
Dolphins: An Endangered Species There are many kinds of dolphins in the world. The most
common one that we see in theme parks, aquariums and movies is the Bottlenose Dolphin.
Fortunately for us, this is one of the few species of dolphins that are not yet endangered. However,
there are many other different species of dolphins that are endangered. For example, the Baiji
Dolphins, Chilean ... Show more content on Helpwriting.net ...
It was thought that there were only around 13 Baiji Dolphins left in the world, and there was even an
organization that was made to help save them. The organization had a website, but it no longer
exists so that makes the situation for these incredible creatures hopeless. It is likely that they are in
fact extinct. This is a sad situation because we could have and should have prevented this. If we do
not save the dolphins, the path to extinct might be quicker. Therefore, we must help save the
dolphins to ensure their population continues to

Dolphin Foraging Techniques Essay examples
Bottlenose dolphins are known to use sea sponges as tools when foraging for food in the ocean. This
behavior is referred to as "sponging". "Sponging" refers to when these particular dolphins put a sea
sponge over their rostrum (snout area) and use it to help collect food. Different explanations have
been given as to why Bottlenose Dolphins engage in this behavior. It has been perceived that young
dolphins learn this behavior from their mothers. Researchers are also exploring the option that a
differentiation in diving skills exists between dolphins caused by variation in the mitochondrial
genes processing of proteins that are involved in the creation of the Bottlenose Dolphins' respiratory
system, and that variation may have lead them to ... Show more content on Helpwriting.net ...
Once found, researchers documented the behavior of these groups and the activities that these
groups partook in. Long–term photographic databases were used to establish identity, and if the
dolphin was noticed to be engaged in sponging at least once, they were included in the dataset for
the study. On the eastern gulf, researchers were already aware of the sponging dolphins due to
previous studies. Between the years of 1994 and 2008, remote biopsy samples of sponging dolphins
were taken when the opportunity to do so allowed. Using a Magellan Meridian Marine GPS device,
the site that each biopsy was taken at was noted appropriately. The biopsy sample was made up of
29 sponging dolphins and 54 "non–sponging" dolphins. At a total of 83 dolphins, 59 of the dataset
consisted of 24 males and 59 females. The researchers recognize that sponging is a predominantly
female activity, however they observed some males engaging in the activity as well and for that
reason they decided to include males in the data, as to test for possible gender influences, but
genetic influence is what they researchers were truly looking to rule out. To do this they chose to
examine the coxII and ctyb genes, using a Gentra Tissue kit to obtain the DNA. These two
mitochondrial genes play a vital role in the respiratory chain, which is link directly to the dolphins'
metabolic energy and therefore could possibly affect the overall diving ability

Bottlenose dolphins are said to be the smartest animals in the world next to humans. They are very
intelligent and show it in many different ways. Dolphins are very social animals that love having
attention. They will do a lot to get it. Many dolphins smarts are used in shows. They learn easily and
will do it on command if you train him or her right. Kids love dolphins because they are so fun to
watch. Dolphins wouldn't be fun to watch if they weren't so smart. Bottlenose Dolphins are some of
the most loved and admired animals in the world.
A dolphin's behavior is not only based off of one thing, it's based off of many things. Their behavior
is affected by their surroundings, companions, mood, and many other things. In order to survive,
dolphins must protect themselves from predators and also must eat. This involves a lot of everyday
activity. Dolphins also need to breathe. If a dolphin doesn't come up for air, it ... Show more content
While they are traveling, the dolphins often ride on bow waves or stern waves. They learned this
from riding ocean swells, which they learn naturally. A bottlenose dolphin can jump up to 16 ft
above the water level. When they land, it is on either their back, belly or side. This action is called a
breach. Dolphins will breach for show just to get attention. To protect pods from danger, larger adult
males will swim around the group and watch for predators. Their actions are like scouting for the
pod. If one dolphin is sick or hurt, two others will assist it to the surface so it can breathe
(Entertainment). Unlike humans, dolphins are voluntary breathers. One part of their brain must
always be active in order to survive. The dolphin needs to remember to swim to the surface every so
often to breathe. A dolphin can hold it's breath for up to seven minutes. When they inhale, they're
exchanging eighty percent of the contents in their lungs (Animal Fact

The Common Bottlenose Dolphin
The Common Bottlenose Dolphin
Organism common name and phylum, class, order, family, genus The common name for Tursiops
truncatus is the common bottlenose dolphin, phylum Chordata, class Mammalia, order Cetacea,
family Delphinidae, of the genus Tursiops,
External characteristics As shown in Figure 1 below, the bottlenose dolphin has a streamlined body
that provides maximum speed underwater.
Figure 1. External Characteristics of the Bottlenose Dolphin
Source: http://www.enchantedlearning.com/dgifs/Dolphin_color.GIF As can also be seen in Figure 1
above, bottlenose dolphins also sport a distinctive beak that helps differentiate them from porpoises
and they possess a tall, falcate (i.e., sickle–shaped) dorsal fin and broad, slightly pointed flippers
(Bottlenose dolphins, 2012).
Internal characteristics As a member of the Mammalian class, bottlenose dolphins are warm–
blooded, or endotherms (Cavendish, 2002).
Normal habitat, including geographical location The normal habitat for bottlenose dolphins are the
temperate and tropical waters situated between the Gulf of Capricorn and the Gulf of Cancer
worldwide (Bottlenose dolphins habitat, 2013) except for the northern Pacific and polar seas
(Cavendish, 2002). Although their habitat is worldwide, the distribution of the bottlenose dolphins is
typically restricted to surface water temperatures of 10° to 32°C (50°–90° F) (Bottlenose dolphins
habitat, 2013).
Nutrient procurement Bottlenose dolphins cooperate in

Research Paper On Dolphins
Toulong Herr
Wed 3:00pm–5:50pm SALAS
What's in a voice? Dolphins do not us voice cues for individual recognition
August 8 2017
Dolphins lacked voice cues which may have led to how they learned to use distinct signature
whistles. Dolphins use these distinct signature whistles to recognize each other. The researchers
study was on the bottlenose dolphins in the Sarasota Bay, Florida, USA. They were looking for if
dolphins react to the sounds of signature whistles from other dolphins. If they did, maybe the
dolphins do use voice cues. From the study, the results were that the dolphins didn't respond
differentially. The dolphins didn't respond to the speaker by not having as much head turns and to
non–signature whistles.
The article lists eight different species of dolphins but the dolphin that was experimented on was ...
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The mean of the number of head turns to whistles of related versus whistles of unrelated was 10.8 to
12.1 respectively.
The significance of this research is that it told us that dolphins do not use voice cues as a part of
their communication. I would fund this research because this is another step of learning more about
how dolphins use their signature whistles to communicate. One thing that might have been done to
make it better was maybe trying the experiment with different age of dolphins to see if the voice
cues are used at a younger age or older. The part of the study I didn't understand was how the
whistles were different on the examples. I could see that over a time period the frequency changes
but how does it sound.
The researchers should look into if male dolphins have a different result listening to whistles from to
male or female whistles. Also experiment with the female dolphins. An idea I have is have offspring
dolphins in an experiment if they have more head turns to a male whistle or female

The Cove Dolphins
Approximately 20,000 dolphins are killed legally every year and thousands more are sold
inhumanely in Taiji, Japan. The majority of these dolphins are sold to marine parks and aquariums
around the world. Louie Psihoyos and Ric O'Barry's eye–opening documentary The Cove raises
awareness about the gruesome killings of dolphins in Japan. Ironically Ric O'Barry feels that he
initiated this problem, as he was one of the first dolphin trainers/capturers in the 1960's for the show
Flipper. After witnessing the star, "Flipper the Bottlenose–Dolphin" commit suicide in his arms, he
became a marine activist, which led to the production of this documentary to stop the problem he
created. Louie and Rick expose the plight of the dolphin, the potential ... Show more content on
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The universal image of the dolphin portrays the illusion that dolphins are always happy because they
consistently appear to be smiling. This, however, is nature's greatest deception as it is simply the
shape of their mouth. Throughout the film the juxtaposition of the beauty of nature is harshly
contrasted with the ugliness of the underlying secrets of the industry in Japan and around the world.
The fishing industry is largest in Japan therefore that is where this movie was filmed. The captive
industry has become a lucrative billion–dollar worldwide trade, with all money made from the
exploitation, imprisonment and lifelong suffering of these living beings. A live dolphin captured for
a marine mammal park can be valued up to $200,000. The most shocking fact is that this is legal.
The International Whaling Commission outlawed commercial whaling in 1986, but dolphin hunts
remain legal. The film's impact was largely due to the emotional ties between O'Barry and dolphins.
Although the filmmakers are extremely biased, his convincing pleads for our help are strategically
made at the most emotional moments. He believes that bottlenose dolphins are being hunted the
most "The fishermen are searching for bottlenose dolphins like flipper". Luckily this type of dolphin
is not yet endangered but this

The bottlenose dolphin, genus Tursiops, is a cetacean renowned for its social intelligence, even
being prescribed the status of non–human persons along with other intelligent species such as great
apes. Both dolphins and primates share a number of attributes that have led to an evolutionary
propensity for intelligence, including prolonged parental care, long lives, complex social bonds, and
communicative cooperation (Reynolds et al., 2000). But unlike primates, dolphins lack opposable
thumbs, as well as any sort of limb that is able to manipulate their environment capably. Dolphins
evolved in an environment that is less affected by gravity and provides three–dimensional
movement, but provides limited chemosensory and visual cues for orientation ... Show more content
Dolphins are able to plan their behavior to achieve a solution more efficiently, as well as create
novel behaviors. Trained to move weights across a pool to receive a reward, each dolphin
independently deduced that they could carry multiple weights at once to reduce the number of trips
(Kuczaj et al., 2009). In another test they were able to plan the order of dropping weights in order to
optimize the number of fish rewards they could receive (Kuczaj et al., 2009). These demonstrated
their ability to analyze problems, plan an appropriate solution, and carry it out in an efficient order.
Mirror self–recognition (MSR) has also been demonstrated in bottlenose dolphins, with the dolphins
using the mirror to investigate a mark on their heads using a mirror, a level of self–awareness only
shared by great apes (Marino, 2002). It is possible that the level of cortical connectivity is a
significant factor in the emergence of complex cognitive capabilities such as self–recognition
(Marino,

Vaquita Research Paper
When you hear the name vaquita, you probably think about the word "cow" or "small cow" in
Spanish, but the truth is there is an animal out there named that in English, and their numbers have
been dropping treacherously low. Also known as the Gulf of California Harbor Porpoise, or by it's
Latin name, Phocoena sinus, as well as cochito or desert porpoise, this cetaceans resembles a
dolphin, having the same sleek, grey dorsal surface, it's only distinguishable feature being it's flat or
rounded face and dark areas around the eyes and mouth, making it look like it has a short beak.
Newborn offspring have a much darker coloration. Vaquitas are relatively small in size, adults being
5 feet long, which is about the high of the average teenager in the United States, while offspring are
about the size of a large human baby or a small toddler. An adult vaquita weights up to 120 pounds.
... Show more content on Helpwriting.net ...
Since not very much is known about vaquita's reproductive behaviors, it is believed that vaquitas
become sexually mature as early as 3 years of age, but most commonly at 6. Females give birth to
one calf approximately every two years. Mothers nurse their offspring for 6 to 8 months, and then
left when they are strong enough. Vaquitas are carnivorous, feeding on different types of lagoon fish
and other marine animals. They use echolocation to track down their dinner, which includes species
from demersal (flatfish, manta rays and flounders) and benthic (crustaceans) zones, teleosts
(croakers, sea trout and grunts) as well as squid and other smaller fish. Vaquitas are native to the
northern Gulf of California, staying around the gulf's shallow areas, though swimming away when a
boat approaches. They are the only porpoise found in such warm temperatures

A Case Of Nuturant Care : Adoption Of A Presumed Delphinus...
SHORT COMMUNICATION
A novel case of nuturant care: Adoption of a presumed Delphinus calf by bottlenose dolphin
(Tursiops truncatus) in Far North waters, New Zealand.
CH Petersa* and KA Stockina aCoastal–Marine Research Group, Institute of Natural and
Mathematical Sciences, Massey University, Auckland, New Zealand
Worldwide inter–specific behavioural interactions in the order Cetacea are diverse and often
complex. Epimelatic care can be described as nurturant or Succorant in nature. Adoption can be
classified as nuturant behaviour, however very few examples of nuturant adoption have been
reported among wild cetaceans and even less between species. During routine dedicated transect
surveys, an adult female bottlenose dolphin (Tursiops truncatus) was found in the presence of a
young common dolphin calf that did not appear to be her own. This mother–calf–like relationship
lasted 9 months until the mother was sighted on multiple occasions without the calf. This paper
describes repeated behavioural observations of apparent inter–specific association, and discusses the
"type" and potential function of this interaction.
Key Words: adoption, epimeletic care, nurturant behaviour, succorant behaviour, allomaternal care,
allomother, alloparental, inter–species, bottlenose dolphin, Tursiops truncatus, common dolphin,
Delphinus spp., Bay of Islands, New Zealand Introduction
Inter–specific behavioural interactions in the order Cetacea are varied and often complex, including

The Bottlenose Dolphin Essay
Have you ever wondered how the Tursiops Truncatus dolphin got its name? It got its name because
it's nose, which is short and stubby. The Tursiops Truncatus' coloring is different from other
dolphins. Their physical appearance is intriguing and distinctive. They have fascinating family life
and eating habits. You can even see bottlenose dolphins in many places in the U.S.A. Their main
home is the Pacific Ocean, but they also live in many other places. The coloring of the bottlenose
dolphin is unique. It is light gray on top and pale pink on bottom. This coloring helps disguise itself
from its predators. The light gray coloring helps it be camouflaged with shadows in the water. The
underside coloring, a pale pink, helps the ... Show more content on Helpwriting.net ...
Hydrodynamic motion is impressive water movement or quickly moving water. The bottlenose
dolphin's head allows for twenty to twenty–four sharp, conical teeth on each side of the upper jaw,
and eighteen to twenty–four teeth on each side of the lower jaw. That gives the bottlenose dolphin
seventy–six to ninety–eight teeth in all! Conical means cone–shaped. These teeth might compare to
the human incisors. The teeth are used mainly for catching food and holding the food so it won't get
away. The eating habits of the dolphin can vary by habitat, location and the food accessibility and
availability. Bottlenose dolphins may eat many various aquatic organisms. Usually bottlenose
dolphins eat fish and crustaceans. They also may eat octopus, mackerel, cod, herring, mullet, squid
and eels, along with shrimp. The adult dolphins take in about four to five percent of their body
weight in food each day! The average bottlenose dolphin will consume seven to ten pounds of food
a day. Of course, the male will eat more than the female. A nursing mother will eat more than the
standard dolphins; she takes in about eight percent of her body weight. When hunting for food
dolphins may corner the prey in shallow water. The bottlenose dolphin will usually swallow the
prey's head first. For larger fish, such as the impressive hammerhead shark, several bottlenose
dolphins will kick it out of the water with their flukes. This injures and stuns the large fish and the

The bottlenose dolphin is the most common breed of dolphin. Bottlenose dolphins live in groups
known as pods, that typically consist of 10 to 30 dolphins. Living in pods are very beneficial to
dolphins in many ways. Sometimes pod members will assist a mother in the raising of her calf. They
are typically found in warm, tropical areas of the world. Bottlenose dolphins can live anywhere from
30 to 50 years. Dolphins are one of the most intelligent animals in the world. A bottlenose dolphin's
diet typically consists of mainly fish. Dolphins usually hunt in groups but can also hunt
independently. They use echolocation to help them while hunting. By making clicking sounds and
waiting for return echoes, dolphins are able to determine how far away the nearest object is, and also
the shape of the objects nearby. This is not only useful in hunting, but it also to allows them to
discover when a predator may be nearby. Dolphins communicate using sound. For example, they
use squeaking, whistles, and clicking noises to talk to other dolphins in their pods. They also use
movement, such as slapping their tails on the water, as a form of communication. Dolphins are
useful to people in many ways. Their intelligence makes them easy to train. The military has trained
dolphins to locate sea mines and enemy ... Show more content on Helpwriting.net ...
Many surfers and swimmers being pursued by sharks have been rescued by a pod of dolphins. Using
echolocation, dolphins can make out human skeletons, lungs, and heartbeats. They are especially
fascinated by pregnant women because they are able to detect the baby's heartbeat as well. Dolphins
have been credited with warding off sharks and saving drowning people. They are also known to
have killed sharks in the attempt to save someone. Even if provoked, dolphins never act
aggressively towards people, but are ready to defend them in times of

The Research On Marine Mammal Captivity
Introduction: In recent years, animals in captive environments such as zoos and theme parks have
grown more controversial. The literature I have reviewed focuses on a particular group of animals in
captivity, cetaceans. Cetaceans include whales, dolphins, and porpoises. The literature includes a
range of themes, from their unique level of intelligence to why they may mentally and physically
suffer in captive environments. However, it all connects to how and why these animals live and
behave differently in captive environments than their wild counterparts. I had a unique method to
how I researched the literature. Since marine mammal captivity is a personal interest of mine, I have
attended educational conferences on the subject where I have made friends with many scientists
such as Dr. Jeff Ventre and Dr. Lori Marino. Since I know them personally, I used their published
research as a starting point because I was already familiar with it and knew exactly where to find it.
From there, I mainly used the "related articles" feature within the database to read through titles and
abstracts to find my other six sources.
Intelligence:
Cetacean intelligence has been studied for many years both in captivity and in the wild. A milestone
discovery in cetacean intelligence is self–awareness. An experiment was conducted with two male
captive bottlenose dolphins in New York Aquarium. The dolphins were marked on a part of their
body that was not visible without a mirror. After being

The Importance Of Animal Behaviors
Animals are more humanlike than you think! Animals have many humanlike emotions and
behaviors, but this can scare people or "blind" them. When it should boost conservation attitudes.
Animals actually have all the emotions as humans do, they just don't always show them in the same
ways humans normally do. Animals have all the primary and learned emotions but do not always
express them in the same way as humans do. Animals experience pain, but that does not mean they
all show it in the same way. For example, a fish will express grief/sadness by hiding or by
swimming back and forth really fast, and they will act really strange. Some chimpanzees, to grief,
will stay around the body of a dead friend for long periods of time almost protecting it ("Animal
Behaviors"). This data is relevant because we now know what emotions most animals do and do not
have. Animals can also have many behaviors that humans have too. For example, chimpanzees use
tools to help them with everyday tasks. An example is chimpanzees use sticks to poke potential
predators to see how much of a danger they are to them. Chimpanzees also use rocks to break nuts
to eat (Animal Behaviors). This is data is relevant to the claim because it shows us what kind of
human–like behaviors animals have. Humans have primary emotions and multiple learned emotions.
Primary emotions are emotions that are expressed by all cultures and they are anger, sadness,
happiness, surprise, disgust, and fear. Learned emotions are

How Does Anthropogenic Noise Affect Cetaceans
Introduction As human presence in the oceans is continually revealed to be detrimental to marine
life, one major area of concern is noise pollution in the ocean and its effects on marine mammals.
Sound is vital to marine mammals' communication and livelihood, so the disturbance of the sound in
their habitat has varying effects. The impact of anthropogenic noise on marine mammals,
specifically cetaceans, can be seen in various experiments and observations concerning the sounds
produced by shipping, construction, and sonars. All of which reveal potential and consequential
behavioral and physiological effects, which include acoustic masking, change in foraging behavior,
and mass strandings. Species studied include harbor porpoises (Phocoena phocoena), ... Show more
It is important that we continue to research known harmful anthropogenic sounds and their effects
on cetaceans to limit further damage, and to research other sources of noise due to humans and their
potential effects to prevent future harm. Through research, it is shown that various noise pollution
caused by humans can have detrimental effects on cetaceans such as harbor porpoises, bottlenose
dolphins, killer whales, and Cuvier's beaked whales. Shipping, windfarm construction, and sonar
can cause temporary or permanent hearing threshold changes, which can result in decreased
foraging ability and communication ability. Shipping has been seen to decrease foraging time and
cause acoustic masking. Sonar can cause death due to strandings and lesions. These all add up to
show that, overall, noise pollution by humans has a serious effect on the quality of life for cetaceans.
It is also important to recognize that absence of a detected reaction does not mean that there is no
impact on these cetaceans. It is possible that noise pollution can cause physiological and
psychological responses without any external symptoms we can detect. It may be important to
develop methods to observe these more subtle reactions to noise pollution that may impact
cetacean's way of life. It is important that humans realize the full extent of their effect on marine life
and create measures to prevent more harm. Noise pollution's effect on cetaceans affect not only
these species, but the other marine life they interact with and the ecosystems of the

SeaWorld Essay
"Splish! Splash!" The sound of bottlenose dolphins jumping and swimming around their tank excites
a family at SeaWorld as they wait to experience their first encounter with the dolphins. Every year,
bottlenose dolphins bring joy to hundreds of people in both captivity and the wild, but what do
people truly know about them? Bottlenose dolphins are actually unique and interesting creatures.
Bottlenose dolphins are one of thirty–two species of marine dolphins (World Book 297). Their
scientific name is Tursiops Truncatus. Males are usually longer and heavier than females. Bottlenose
dolphins can grow to be thirteen feet long and weigh up to 600 pounds (Bottlenose Dolphins). This
makes bottlenose dolphins the largest of the beaked ... Show more content on Helpwriting.net ...
If a dolphin catches a large fish, it will smack the fish on the ocean floor or the water's surface to
break it into smaller portions (McClintock). After a dolphin catches its prey, it uses its tongue to
swallow the fish and push the water out of its mouth (Dolphin Research Center). Dolphins can eat
up to thirty pounds of fish in one day, so it is helpful that they have three stomach compartments,
similar to that of a cow (McClintock) (Lockley 69). Bottlenose dolphins find fish by using
echolocation. This is when a dolphin sends out a beam of short sonar pulses from its melon, or
forehead. The beam reflects off of fish or other objects and echoes back to the lower jaw. The echoes
are then sent to the ear bones where they are characterized. Using echolocation, dolphins are able to
locate prey that is buried up to one and a half feet under the sand (Cahill 140–141). Bottlenose
dolphins are excellent swimmers. They can jump up to sixteen feet in the air. Three to seven miles
per hour is their normal swimming speed, but they can reach speeds of eighteen to twenty–two miles
per hour. Dolphins also porpoise, which is when a dolphin swims fast enough to repetitively come
out of the water and back under the water in one swift movement. This uses less effort than
swimming fast at the ocean's surface. When dolphins swim in deep open water, they often dive.
They dive

Bottlenose Dolphins: A Very Brief History Of Dolphins
Dolphins have undergone an interesting history as they evolved from their whale ancestors.
Archaeoceti is a parvorder comprising ancient Cetaeca.
Dolphins can swim very fast. Swimming speed and duration are closely tied. High speed swimming
can probably last seconds, while low speed swimming may last for long periods of time. Bottlenose
dolphins usually swim at speeds up to about 3 to 7 miles per hour. Dolphins breathe through a single
blowhole on the top of it´s head. The blowhole is covered by a muscular flap, which provides a
watertight seal. Bottlenose dolphins usually do not need to dive very deep to catch food. On an
average, a dive may last up to ten minutes. The longest a bottlenose dolphin can hold it´s breath for
12 minutes.
Cetacea

Essay on Bottlenose Dolphins
Bottlenose Dolphins This essay is NOT formatted Bottlenose dolphins are among the most vocal of
the nonhuman animals and exhibit remarkable development of the sound production and auditory
mechanisms. This can be seen in audition, which is shown in the animal's highly refined
echolocation ability, and in tightly organized schools in which they live that are made up by sound
communication. In testing the communication skills of dolphins, extensive studies have been done
on vocal mimicry, in which the animal imitates computer–generated sounds in order to test motor
control in terms of cognitive ability. Language comprehension on the other hand has been tested
through labeling of objects, which has proven to be ... Show more content on Helpwriting.net ...
1986). In order to understand the complexity of these highly mechanized acoustic systems, it is
necessary to learn the process for which the dolphin hears. In most water–adapted cetaceans, tissue
conduction is the primary route of sound conduction to the middle ear. The isolation of the bullae
shows an adaptation for tissue conducted sound. The lower jaw contains fat that is closely associated
with the impedance of seawater. The lower jawbone of most odontocetes becomes broadened and
quite thin posteriorly, and the fat forms an oval shape that closely corresponds to the area of
minimum thickness of the jaw. This fat body leads directly to the bulla, producing a sound path to
the ear structures located deep within the head. Paired and single air sacs are scattered throughout
the skull, which serve to channel these tissue–conducted sounds (Popov & Supin, 1991). Other than
this description, there are still more studies needed to determine the function of the middle ear and
the type of bone conduction that occurs within the bulla. Due to detailed audiograms, dolphins have
been shown to have the ability to detect high–frequency sounds. In an experiment by Johnson
(1966) as cited in Schusterman et al. (1986), sine–wave sounds ranging in frequency from 75 Hz to
150 Hz were presented to a bottle–nosed dolphin. The animal was trained to swim in a stationary
area within a stall and to

Compare And Contrast Dolphins And Harp Seals
Have you ever wondered how different and alike bottlenose dolphins and harp seals are?Bottlenose
dolphins and harp seals have different body shapes,yet they have the same color.A bottlenose
dolphin and a harp seal have different lengths and weights. The traits for a bottlenose dolphin and a
harp seal are similar and different,but mostly different.The are both grey.Even though they both
have the same color a bottlenose dolphin weighs much more than a harp seal.A bottlenose dolphin's
length is eight and a half feet and a harp seals's is five and two feet to six and two feet.Bottlenose
dolphins' life expectancy is up to twenty to fifty years,which is much greater than a harp seals' life
expectancy,which is up to thirty five years.

Drive Hunting in the Oceans
Every year tens of thousands of marine mammals are killed all over the world, with over twenty
thousand small cetaceans killed in Japanese waters alone (Butterworth et al., 2013). These small
cetaceans include various species of small whales, many dolphin species and some porpoises. They
are killed in various manors, ranging from accidental ship strikes to the more morally controversial
yearly drive hunts. As you may know nearly all cetaceans use some sort of sound production in
order to navigate waters, communicate with other individuals and groups of their respective species
as well as capture prey (Brownell et al., 2008). An example of this is the variety sounds produced by
bottlenose dolphins (Tursiops truncatus) when exploring and foraging. These types of noises vary
from echolocation, whistles and pops according to Nowacek (2005) which aid in location of prey,
and communication when hunting in groups. Bottlenose dolphins are one of the most well–known
cetacean species (Bearzi et al., 2008). They inhabit various marine habitats across the world
including just about any region with a warm–temperate to tropical ocean climate (Reeves et al.,
2002). Just like many other cetaceans they are well known for inhabiting coastal areas, which makes
them particularly vulnerable to human interaction and threats they wouldn't necessarily face on the
coast of uninhabited lands (Wilson et al., 2008). This use of sound is an extraordinary adaption for
life under the sea, unless of

Winter The Bottlenose Dolphin Persuasive Speech
Is anybody aware that on a daily basis you could be consuming the 5 million tonnes of plastic that
enters the sea annually? That is why today I will be informing you on the dangers and risks of
animal and human lives due to ocean pollution. Clearly, I am against the actions of these careless
people. The trash and plastic that is thrown onto the streets everyday ends up blowing into the water
and polluting our world's beautiful oceans. People incautiously toss their trash into the ocean or to
the sidewalks as if it is a giant trash can. It is causing the oceans to become dirtier every year.
Speaking on the bottom half of marine life and people everywhere, nobody wants to swim in water
with used straws, crinkled up wrappers, or old deflated balloons. Not only is it un–enjoyable, but it
is taking an animal's life everyday. Many of you have probably watched the movies, read the book
or heard the story of Winter, the bottlenose dolphin with a prosthetic tale. The poor dolphin was
found stranded in Mosquito Lagoon, near Cape Canaveral, Florida. She was tangled in a crab line
that was let off of a fishing boat. Due to the ... Show more content on Helpwriting.net ...
Seeing Winter was heartwarming to know she is okay but many animals will not have the same luck
as Winter did being found. If animals are tangled or have eaten trash, they are often left on their own
in the ocean and die. According to Science Weekly, "Balloons, sandwich bags, and other trash are
often mistaken by ocean animals for food. Plastic 6–pack rings get caught around marine birds and
other ocean animals, strangling them". Once these are in the ocean it can take up to 400 years for the
plastic to decompose. This plastic waste is causing animals to die as quickly as you can even say the
word, "die". The trash and plastic that is in the ocean is starting to impact the many different

Bottlenose Dolphins
Bottlenose dolphins produce a extensive variety sounds that are divided into two categories: pulsed
emissions, i.e. echolocation clicks and burst–pulsed sounds; and non–pulsed signals, i.e. whistles
(Caldwell et al., 1990; Janik, 2013) (Figure 1:2).
Clicks are high–frequency and directional sounds that are used to detect, discriminate and recognize
objects in the environment, including potential preys (Caldwell et al., 1990; Janik, 2013). These
clicks are used to locate/discriminate an object based on the returning echo, and the system is known
as echolocation or biosonar (Griffin, 1958). Bottlenose dolphins produce high–frequency broadband
clicks with dominant frequencies generally higher than 50–60kHz (Au, 1993).
Burst–pulse sounds are ... Show more content on Helpwriting.net ...
(1990), signature whistles are stereotyped and individually distinctive whistles, recognizable by the
frequency modulation pattern of the contour (Janik et al. 2006), and may be the most commonly
whistle type produced by an animal in isolation (Caldwell et al., 1990).
David and Melba Caldwell were the first investigators postulating that signature whistles may
represent a unique vocalization, different for each dolphin. These stereotyped whistles seem to be
stable for a long time (Sayigh et al. 1990, 2007; Bruck, 2013; Luís et al., 2015), suggesting that
these signals may be involved in individual identification (Caldwell & Caldwell, 1965; Tyack 1986;
Caldwell et al., 1990; Sayigh et al., 1990; dos Santos et al., 2005).
In isolation, signature whistles may represent 80% to 100% of whistles' emissions (Caldwell &
Caldwell, 1965; Caldwell et al., 1990; Janik & Slater, 1998; Sayigh et al. 2007; Janik et al., 2013).
Signature whistles are probably developed through vocal learning during the first year of a dolphin's
life, and may remain stable throughout an individual's lifetime (Caldwell & Caldwell, 1979;
Caldwell et al. 1990; Sayigh et al. 1990; Janik & Sayigh,

Bottlenose Dolphin
A Bottlenose dolphin has very many actions, like cute, funny or even playful. Dolphins are so
adorable they love to play. Dolphins are very playful and love to meet people. Sometimes they even
will play jokes cause they're so sweet. Dolphins have diets, like squid, fish, and crustaceans.
Dolphins are commonly seen in aquariums, sea parks, TV shows, and movies, the bottlenose
dolphin is a wildly recognizable cetacean (marine mammal). In the wild, bottlenose dolphins inhabit
the temperate and tropical oceans around the world with coastal populations entering into bays,
estuaries, and river mouths. Like the name "bottlenose" suggests, this species of dolphin has a short,
stubby beak. Its sleek, conical body varies in color from a light to slate ... Show more content on
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They have a thick layer of blubber which helps them maintain their body heat and protects them
from predators such as killer whales and large sharks. They have sensitive, smooth skin that flakes
off and gets replaced every few hours.
Despite the fact that they live underwater and can hold their breath for up to 7 minutes, dolphins
must come to the surface to breathe air. A muscular flap covers their blowhole while underwater and
opens to exhale once they reach the surface. Dolphins can exhale air at 160 km/hr (100 mph). When
they inhale, they can exchange up to 80% of the contents of their lungs. Humans, by comparison,
only exchange 17% of the air in their lungs when they breathe.
Dolphins aren't involuntary breathers like humans. They must consciously swim to the surface to
take a breath. This means they can never fully sleep. One side of their brain must always be active
so that they remember to breathe. Although they have little to no sense of smell, bottlenose dolphins
have other well–developed sensory

Bottlenose Dolphin Informative Speech Essay
The Bottlenose Dolphin
Specific Purpose: To inform my audience about the bottlenose dolphin species.
Central Idea: Dolphins are unique creatures that possess numerous abilities such as, their
intelligence, communication skills, and behavioral patterns.
Introduction
I. Imagine yourself surrounded by a pool of water, but not just any pool of water, the biggest one of
all: the ocean. You're in the ocean attempting to swim, but only this time, instead of moving your
arms over your head and your legs up and down, your only moving your lower half, up and down.
You swim for a period of time and then suddenly realize your oxygen supply is slowly running out.
You swim to the surface and breathe, then your right back at it, swimming with no ... Show more
a. Communication occurs within the dolphin itself.
i. This includes a range of echolocation clicks in the dolphin sonar system used to identify objects
underwater. ii. Studies by the US Navy have proven that a dolphin's sonar communication is
accurate.
1. Dolphins can locate a 3–inch sphere 400 yards away (Wexler, 1994).
b. Communication can also occurs between two or more dolphins.
i. This was measured using the rate of whistling in dolphins.
1. According the University of St. Andrews' study, of 29 different dolphins, whistling rates during
non–polarized and socializing movements were higher than surface travel (Quick & Janik,
2008). ii. Dolphins alert stress levels to other dolphins by altering the pitch of their signature whistle
(Wexler, 1994).
Transition: After learning about a dolphin's sense of communication, we can now build upon this
information by examining their unique behavior.
III. A final ability worth noting is the social inclination of dolphin behavior.
a. It has been proven that a lot of their behavior revolves around social activity.
i. Randall Wells and his team observed groups of male dolphin behavior in Sarasota Bay, Florida.
1. The dolphins lifted their heads, which allowed them to toss each other out of the water.
2. This proved that these interactions were defining their social relationships (Rohan, 2003). ii.
Another study consisting of 52 dolphins proved that social

The animal that I choose was Bottlenose Dolphin, but if you want it scientific name is considered as
a Tursiops. Bottlenose dolphins are mammals so they are warm–blooded just like human. There are
so many things to talk about this species like what they do during their environment and learn about
their life cycle. It is great that I am learning about my favorite animal and it turns out that dolphin
are never separated from their families. Bottlenose dolphins are very joyful that like kids would
want to swim with them and play around. There were so many species that I could name that are
dolphins, but my favorite is Bottlenose Dolphins. Males are considered as bull and females are
considered as cow, weird right. What I like is the babies are considered to name as pup or calf.
Usually dolphins are always in a group called pods or school. The Bottlenose dolphin is probably
one of the best–known species of dolphins.
How? There are always seen in zoo, ... Show more content on Helpwriting.net ...
They considered being in United States toward the Southern California to Chile, many are found in
Northern Japan to Australia. They also suspect that they live in Hawaiian Island. Some Bottlenoses
are also located in Europe to the Mediterranean and Black Seas. I know that for sure is that most
Bottlenose dolphin live in Florida too.
Bottlenose has to be a fast swimmer because it's considered them to indicate an exercise for them
and it is energy efficient for swimming. If they are put in a zoo they usually make people happy by
doing incredible tricks. Other who is in the ocean they usually use their speed and their flukes to
survive from their predator.
Bottlenose dolphins are just like human; they don't lay eggs, but give birth to live babies. Mother
gives birth after 12 months and then they remain with their mother for four year. They soon later live
on there own, but stays in a group. They live about 45 years, which long enough for them to

Sperm Whales Analysis
Sperm whales use "rapid pulse trains and creaks when they dive to great depths" (Jones 2005). The
creaks, as mentioned by Jones (2005), are "associated with rapid body movements [by the whale]
suggestive of pursuit of prey" (Jones 2005). These whales utilize the rapid pulses when closing in on
their prey to hone in on the finer details, almost identical to the terminal phase of bats. Dolphins can
produce a variety of different sounds for different purposes. Each individual sounds different, and
even produces it own variety of clicks or noises. For example, bottlenose dolphins use certain tones
of whistles to communicate 'pleasantries' to one another. They also can produces barks or wailing
that is considered a series of longer duration clicks

Review Of The Article 'Dolphin Eats An Octopus Without Dying'
"How a dolphin eats an octopus without dying" Sarah Zielinski recently did an article in April on
how can dolphins eat octopuses.She explains that dolphins and humans share a similarity, that as
good as an octopus may taste it is difficult to eat mainly because of their tentacles. Unlike humans
dolphins do not have the same resources we do that allow eating an octopus to be easy. Zielinski
speaks on how it is possible for dolphins to enjoy the meal without hands and or suffocating. In
Zielinski's article she provides facts and necessary information to prove that dolphins can eat
octopuses. The article is filled with facts. She also throws in some photos as proof to show how the
dolphins do what they do to eat the octopus. There is more than

Persuasive Essay On Dolphins
The Interesting Dolphin
Many people know those cute, funny, intelligent animals that are known as dolphins, right?
There are so many interesting things about them. Dolphins have been around for about 15 million
years now. They're extremely intelligent, probably even more intelligent than us humans. Dolphins
are becoming endangered because of humans and many don't know that. They are known as the
oceans most kind animals.Dolphins have originated millions of years ago,are extremely
endangered,and are becoming endangered.The most important thing to know about dolphins would
probably be how they originated because without that those cute aquatic mammals wouldn't even
exist. Dolphins have been around a lot longer than humans. They originated about 50 million years
ago. The most common dolphin, being the bottlenose dolphin, has been around for 15 million years.
Surprisingly, dolphins originated from members of the cetaceans group. Cetaceans used to be land
mammals but evolved into being aquatic mammals. In From Land to Water it stated, "The transition
from land to water is documented by a series of intermediate fossils from India and Pakistan." This
research helps prove how they used to be land mammals but evolved to live in the ocean. Dolphins
are one out of many aquatic mammals who need oxygen, but they need water in order to live.
Believe it or not, dolphins are somewhat related to hippos, camels, deer, cattle, and giraffes. In From
Land to Water, " Many features that are

How Effective Is A Bottlenose Dolphin's Echolocation?
Echolocation is widely used by many species which lives in different habitats. The process works
when an organism observes acoustic signals, and attains a sense of the space surrounding from noise
or echoes that the organism had detected. Animals use echolocation for specific reasons to determine
the presence of nearby preys or predators. This way the process of catching or escaping from objects
is more efficient to most species. Many marine and land based species use echolocation as a defense
against their surroundings. Although some researcher finds echolocation more effective underwater
than on land where mainly light is used. Sound can travel through longer complex frequency with
objects than light. Many marine mammals use echolocation ... Show more content on
Helpwriting.net ...
In "Field assessment of C–POD performance in detecting echolocation click trains of bottlenose
dolphins (tursiops truncates)," demonstrates the performance of bottlenose dolphin's echolocation
detectors in three different areas testing acoustic recording. The echolocation rates presented here
were potentially influenced by variation in both the occurrence of dolphins and their echolocation
activity among sites (Robert, Read 2015). Based on the results, dolphins use the same variation in
all three sites used in the experiment. The shorter the distance from the predator to its prey, higher
frequency is used in echolocation of the specie. The detection range of any passive acoustic
monitoring units is highly dependent on the environment in which it is deployed and the behavior of
the target species being recorded (Robert, Read 2015). Many other environmental factor such as
salinity, temperature, and water depth affects the sound of echolocation for the dolphins. In
bottlenose dolphins, the brain is the one that receives the sound waves in the form of nerve
impulses, which then applies the signal of sound and allows the dolphin to understand what the
sound

The Language Of Dolphins: Video Analysis
The video of the animals that was the most like human language was the dolphin in the video 'The
Language of Dolphins'5. This video represents that language that is most like human language
because although it may not be a verbal language between her and her trainer, humans can
effectively communicate effectively through non–verbal language, i.e. sign language and written
word. Each hand gesture that the trainers do is a separate word, Akeakamai can take the separate
gestures and put them together into sentences to understand what the trainer is saying. The dolphins
who live at The Dolphin Institute, in the Marine Mammal Laboratory on the island of Honolulu
have been taught a simple sign language. One female dolphin called Akeakamai has a

I am like a Bottlenose Dolphin. In nature, Bottlenose Dolphins are known for their advance thought
processing, communication skills, sense of curiosity, and open minds. Like a Bottlenose Dolphin, I
have all the same attributes that make me a distinct student and individual. To the advanced mind of
a Bottlenose Dolphin, the ocean is its domain that it can mature in and mold in the way it pleases.
For me, the entire earth is my domain to mature in and to mold. The unique way I want to shape the
future of the world is by becoming a biomedical engineer and using what I have learned during my
studies to change the world of biomedicine. I will use my dolphin like attributes to aid me in
reaching my goal. Once I become a biomedical engineer I will surely have accomplished my goal in
life and hopefully will be well on my way to changing others way of life.. ... Show more content on
Helpwriting.net ...
In addition to this nature, they are capable of advanced communication skills that allow them to
teach new tactics they have learned to their fellow dolphins. I am also the same as a Bottlenose
Dolphin when it comes to efficient communication skills.. My style of learning requires me to go
through an exhaustive process of trial and error until I have efficiently learned what I have desired to
learn. With the knowledge that I have gained, I have been able to ascend to higher levels of
academic studies with the ability to use my acquired thinking and comprehension skills which help
to aid me in everyday life. However, I am not one to hoard any information that I have managed to
learn. I will share any knowledge that I know with my fellow peers around me so that I may aid
them throughout life just like a Bottlenose

Group Membership Method Resembles Previous Bottlenose Dolphin Research

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