- from Bones
In nature, how you’re built matters a lot. How does a cheetah run 65 miles an hour? Its long tail helps with balance.
Snakes have 400 vertebrae to help them slither around. An owl has huge eye sockets. Huge eyes help it see in the dark.
Vertebrates are grouped into five basic classes. They are amphibians, mammals, reptiles, fish, and birds. In each group, the skeletons look the same. Their size is the biggest difference. For example, a toy poodle’s bones look like a wolf’s bones, but smaller. Even among totally different animals, you can see things that look alike between skeletons.