CATS! WILD TO MILD | BODY PLAN

THE BASIC BLUEPRINT

All cats have similar skeletons with compact, rounded skulls; long backbones; and (usually) a long tail. The skeleton is fairly generalized, allowing for both speed and power. Specific differences in body proportions reflect adaptations to different environments.

The cheetah probably differs the most from the basic cat blueprint -- its limbs are very long, and its skeleton is almost dog-like. Select this text to see a close up of a cheetah skull.

The cat's flexibility is due to its supple spine, which allows it to curl into a ball as well as stretch into a shallow U, as seen in this ocelot.

Cats and humans have about the same number of bones in their bodies; however, unlike cats, we have long limbs, short and rigid backbones, and we've lost our tails! Compare the skeletons of the cat and the human. Can you indentify those bones that are homologous? (the bones that are the same between both species)


human skeleton


domestic cat skeleton


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This page was made possible by a grant from Friskies PetCare Company and the National Science Foundation.

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Photograph of cat skeletons by Dick Meier, modified by Jim Angus © Natural History Museum of Los Angeles County Foundation

Photograph of ocelot from SunSITE Japan Multimedia Collection.

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