Reptiles can live in many different places ... Amphibians are animals that live both in water and on land. They start their lives in water, hatching from eggs, and then grow into adults that ...

The cheetah is the fastest land animal, with a top speed of 60-70 mph. Its muscular build and sharp claws help it maintain traction ...

Scientists have described about 250,000 different fossil species ... or silt on the sea floor. Land animals and plants usually decomposed or were eaten, and mainly the hard parts -- teeth ...