Why are the legs and feet of a frog special?

      The legs and feet of frogs are adapted to where they live. We know that there are ground-dwelling frogs, aquatic frogs, arboreal frogs or those that live in trees, and burrowing frogs. In each case, the structure of their legs and feet vary greatly.

The legs of ground-dwelling frogs are designed for jumping. The three core bones of the hind leg are fused into a single, strong bone, and the limbs are elongated allowing the frog to apply force to the ground longer.

Burrowing frogs have short, muscular hind legs that they use primarily for digging. They also have a special hardened plate on each foot that they use like a Shovel to dig through soil. Tree frogs have sticky pads on the tips of their fingers and toes that help them grip tree trunks and branches. Some tree-dwelling frogs have specialized webbing between their toes that they used for gliding. Aquatic frogs have webbing too, which makes their swimming easier.