DNA Offers New Insight Concerning Cat Evolution - New York Times
A great New York Times article. Read the whole thing, but I absolutely love this paragraph, which reminds us that evolution doesn't always make a species stronger or faster or better at hunting.
Later, several American cat lineages returned to Asia. With each migration, evolutionary forces morphed the pantherlike patriarch of all cats into a rainbow of species, from ocelots and lynxes to leopards, lions and the lineage that led to the most successful cat of all, even though it has mostly forsaken its predatory heritage: the cat that has induced people to pay for its board and lodging in return for frugal displays of affection.