Frogs absorb water through their skin so they don't need to drink. Frogs can lay as many as 4,000 eggs. Frogs need both water and land to live. The eyes and nose of a frog are on top of its head so it can breathe and see when most of its body is under the water. Frogs and toads are somewhat different. In general, frogs have moist smooth skin and spend all their time in or near water. Toads have dry bumpy skin and don't have to be near water all the time. Like trees, frog bones grow a new ring every year while the frog hibernates. Scientists use these rings to determine the age of frogs. Frogs don't give you warts! Warts are caused by a virus. The biggest frog is the goliath frog that lives in Cameroon, Africa with bodies that are nearly 1 ft. (30cm) long and legs that are even longer than that! Amphibians, such as frogs and toads, have porous skin that makes them especially sensitive to changes in their environment. As their life cycle requires both aquatic and terrestrial habitats, these vulnerable creatures are among the first to suffer the consequences of environmental threats such as pollution, destruction of wetlands and other habitats, non-native species introduction, and increased ultraviolet radiation. Over 200 amphibian species from around the world have experienced recent population declines. As an indicator of greater ecosystem health, this widespread trend raises many concerns about the health of our environment.

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Also known as the Smiling Tree Frog or Dumpy Tree Frog due to the nature of its appearance, this frog is a very hardy creature and a favorite pet of amateur frog owners, although some pet owners complain that they are not active enough. These frogs love to eat, which can make them quite fat, hence their "dumpy" appearance. Unlike many frogs, these frogs do well with other frogs of their species and are fairly friendly. They like a warm and moderately humid habitat and eat larger insects like crickets, cockroaches, locusts, moths and beetles.