The smallest frog species is golden frog—its size is about ¾ inch (1 cm).
The largest frog species is the goliath frog—it weighs up to 7 pounds and can reach the length of 1 foot.
Some frogs live over 20 years.
Frogs' Natural AbilitiesFrogs have flexible eyes. They even use their eyes to help them eat their food: frogs can pull their eyes inward toward the mouth to help them push the food down their throat.
Male frogs fill their vocal sacks with air to give them a loud croak that can be heard a mile away. They do so to attract females.
Some frogs have long sticky tongues to catch their prey.
Amazing Frog SpeciesWood frog can survive after its body gets mostly frozen and its heart stops beating during the arctic winter freeze. The frog’s glucose (sugar) in its blood keeps its essential organs from freezing (just like antifreeze), thus enabling the mostly solid frozen frog to melt in the spring and live on!
Australian water-holding frog can store water in its body and survive in the desert for up to seven years without water, buried in its burrow. In its burrow, the frog releases mucous material that hardens and allows the frog to preserve its water for longer times. The flat-headed frog is another species that can also store water and live in its burrow until it feels moisture from the rain. Both breeds are native to Australia.
The male Darwin frog places newly hatched tadpoles in its vocal sack or pouch. The tadpoles start their life in the pouch until they swim out of it as baby frogs. This frog species is named after Charles Darwin since he was the first to find it.
The gastric brooding frog swallows its fertilized eggs and keeps them warm inside her body. Tadpoles stay in the mother’s stomach until they become frogs about 7-8 weeks later and eventually come out of the stomach, jump out of the mouth, and meet the world.
The Bornean flat-headed frog has no lungs! It breathes through its skin.