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Introduction to FrogsFrogs, like humans, go through physical development over time. They go through a cycle of stages where their bodies develop from a small egg to a full-grown frog that we see hoping from place to place. Frogs first develop from their eggs and grow into small tadpoles where they begin to swim around, eat algae, and relay on camouflage to protect itself because they are extremely vulnerable in this stage. The tadpole stage can last for either 3 days or 3 weeks, depending on the development and what type of frog it will grow into. After about five weeks dramatic changes take place in the tadpole. It begins to grow hind legs and lungs develop. After 11 weeks since the egg is first laid the frog is fully developed. Eventually the frog will meet a mate and the life cycle will start again for another frog. Continue exploring more on this website to learn more about the life cycle of frogs!
Life Cycle of a Frog
Eggs - Tiny frog eggs are laid in masses in the water by female frogs.
Tadpole - Tadpoles hatch from the eggs, swim, and breathe using gills. Tadpole without gills - External gills disappear, and the tadpole begins to breathe with lungs. Tadpole with legs - The tadpole sprouts legs, has a longer body, and has a more distinct head. Froglet - The front legs form, the tail shrinks, and the froglet can leave water Frog - The frog's tail is totally absorbed into its body, and the frog lives on land |
Topic Concept Planner
Children's Literature
Non-Fiction
Slippery, Slimy, Baby Frogs
by: Sandra Markle |
From Tadpole to Frog
by: Gerald Legg and David Stewart Fiction |
Frogs & Toads
by: Gary Fleming |
Growing Frogs
by: Vivian French |
Frog
by: Susan Cooper |
Frog and Toad Together
by: Arnold Lobel |
Teacher Resources
The Nature Frog http://video.nationalgeographic.com/video/animals/amphibians Frogs & Toads of the Southeast
By: Harry Parson By: Mike Dorcas, Whit Gibbons
By: Harry Parson By: Mike Dorcas, Whit Gibbons