Cave animals are small, cold-blooded and usually colorless. These animals require little food. Cave animals usually have poor eyesight. To help them find food in the dark, they have well developed senses of taste, smell and touch. The blind cavefish and amphipod are troglobites.
Some animals visit caves but also spend time above ground.
Some bats and frogs are trogloxenes. Because caves are formed by water, pollution of surface and ground water can lead to destruction of the cave and organisms that live in it. Check out a library book and read about caves.