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Frog powerpoint

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Frog powerpoint

  1. 1. Today we aregoing to look atthe life cycle ofa frog. Thispicture showsthe differentstages ofdevelopment.Let’s have a closer look.
  2. 2. Frog SpawnFrogs lay their eggs inwater or wet places.A floating clump of eggsis called frog spawn.    This large and slipperymass of eggs is too big tobe eaten. This is natures way ofprotecting them.
  3. 3. TadpoleThe tadpole has a long tail,and lives in the water.It must rely on itscamouflage to protect it.The tadpoles also facedanger by being eaten byother water animals. Sometimes a pond dries upand the tadpoles die.
  4. 4. Getting biggerAfter about five weeks the tadpolebegins to change.It starts to grow hind legs. Behind itshead, bulges appear where the frontlegs are growing and its tail becomessmaller. Lungs begin to develop, preparing thefrog for its life on land.   Froglet
  5. 5. A young frogOver time, the tadpole becomes even more froglike.  It hasshed its skin and lips. Its mouth widens, and it loses itshorny jaws. The tail becomes much smaller, and the legsgrow. Its lungs begin to work.
  6. 6. An adult frogEleven weeks after the egg was laid, a fully developed frog withlungs, legs, and no tail emerges from the water.This frog will live mostly on land, with occasional swims. Thetiny frogs begin to eat insects and worms. Eventually, it will find a mate. The female lays the eggs, themale fertilizes them, and the whole process begins again.
  7. 7. Let’s have one last look at thelife cycle of a frog.
  8. 8. Animations available fromwww.animationfactory.comwww.communication4all.co.uk
  9. 9. Animations available fromwww.animationfactory.comwww.communication4all.co.uk

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