CATS! WILD TO MILD | EVOLUTION

CLIMBING THE FAMILY TREE

All cats can trace their ancestry back about thirty million years, when felids first appear in the fossil record. The earliest known felid, Proailurus (Pro meaning early ailurus meaning cat), was about the size of a bobcat with a long tail and slender limbs. Many species of felids, including a number of now-extinct saber-toothed cats, have evolved on different continents since then.

Akin to a Cat

One of the biggest tasks facing cat researchers is the determination of how modern cat species are related to one another. In the past, relationships were determined by looking at the morphology, or "body plan" of the animal and at behaviors such as hunting strategies. Because all cats have similar body plans and behavior, relationships were difficult to determine. With the development of cellular and molecular techniques over the past decade, biologists have been able to make significant advances in determining these relationships.

The following is one grouping of modern cats based on these new techniques. The cats that fall in the same group are likely to be closely related to one another.

OCELOT LINEAGE

DOMESTIC CAT LINEAGE

PANTHERINE LINEAGE


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