Frogs feed using their long tongue. Their hunting style is to sit and wait for their food to come to them. The frog flicks the tongue out at high speed and snaps up whole invertebrates. The frog has numerous, cone teeth around the edge of its jaw and two patches of vomerine teeth on the roof of its mouth to prevent the prey from escaping. The food is then digested through a simple digestive system.
Frogs absorb water through their skin.
The skin is loosely attached to the body, and water collects in large spaces. They do not drink water like other animals do. Almost all frogs have the same basic body structure. Except for a few species of burrowing frogs, they all have long strong legs for jumping, swimming, or climbing. Many frogs can jump up to 20 times their body length on a flat surface.