- There are more than 5,000 known species of frog, found on every continent except Antarctica.
- The word "toad" simply refers to a frog with drier, warty skin and shorter legs — every toad is technically a frog.
- Frogs breathe partly through their skin as well as their lungs, which is why they need to stay near moisture to survive.
- Many male frogs have vocal sacs — pouches of skin that inflate like a balloon and amplify their call, sometimes loud enough to be heard from more than a mile away.
- A frog's powerful hind legs let many species leap more than 20 times their own body length in a single jump.
- The Goliath frog of West Africa is the largest frog species, growing up to 13 inches long and weighing as much as 7 pounds.
- Frogs undergo complete metamorphosis — hatching from eggs as swimming, gilled tadpoles before developing legs and lungs and losing their tails as they mature into adults.
- Nearly 900 frog species are listed as endangered, and amphibians as a group are considered the most threatened class of vertebrates on Earth.
Field Guide
