Water varieties have webbed toes to help them swim, and climbers have sticky pads on the end of their toes to grip trees. The short front legs help to break its fall when it lands and prop it up when it sits. A frogs body is held up by his skeleton. The frog has many bones like other vertebrates. He has no ribs.
Frogs have special skin to help keep dirt and germs out.
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. Some frogs can change their color to adapt to their surroundings. This is the frogs most powerful protection against its enemies. The colors that they can turn are different shades of green, gray, and brown. In dark environments, frogs skin darkens.