Frog life cycle
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Frog Life Cycle Stage 1: Eggs are laid in a mass of jelly in water. Stage 2: Eggs hatch into tadpoles, which have tails and gills and live in water. Stage 3: Tadpoles grow legs and lungs develop, the tail is reabsorbed and they become froglets. Stage 4: Froglets are fully developed into adult frogs with legs and lungs on land.
Frog life cycle
- 2. Metamorphosis •Metamorphosis is a major change in the body form of an animal during its life cycle.
- 5. Animals other than the frog undergo metamorphosis
- 6. Which pictures show metamorphosis?
- 7. Frog Life cycle •Stage 1 •Egg mass •frog eggs are found all stuck together. They are usually in the water of a pond or marsh.
- 10. Stage 2: Tadpole •A tadpole is an immature frog that must live in the water. •It hatches from an egg. •It has gills and a long tail. •It breathes and swims like a fish. •It looks very different from its parents.
- 11. Tadpole
- 12. Stage 3: tadpole with legs •After about five weeks, the tadpole starts to change. •Tiny buds beside the tadpole’s tail grow into little hind legs.
- 13. Tadpole with hind (back) legs
- 14. Stage 3: tadpole with legs (froglet) •After the hind legs appear, a tadpole develops front legs. •Still a tadpole, this young frog has four legs now. •Its tail will soon disappear. •Its lungs are almost completely developed.
- 15. Tadpole with 4 legs (Froglet)
- 16. Stage 4: Adult frog •This frog has fully developed legs and lungs. •There are no gills and no tail. •It’s an adult!
- 18. Frog Life cycle
- 21. The young ostrich looks like its parents, only smaller. The young frog is a tadpole, and it looks very different from an adult frog.