Cats approved this win
But of the
41 species of wild felines, the vast majority are about the size of a housecat. Few people have heard of the black-footed cat or the Borneo bay cat, much less the kodkod, oncilla or marbled cat. Clearly, the little-cat side of the feline family needs a better PR agent.
In theory, any of these species could have been the progenitor of the domestic cat, but
recent DNA studies demonstrate unequivocally that today’s housecats arose from the African wildcat – specifically, the North African subspecies,
Felis silvestris lybica.
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Yet many domestics appear basically indistinguishable from wildcats. In fact, only
13 genes have been changed by natural selection during the domestication process.
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To signal friendly intentions, an approaching cat raises its tail straight up, a trait shared with lions and no other feline species.
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Evolution of a master manipulator
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Cats similarly
manipulate people with their purrs. When they want something – picture a cat rubbing against your legs in the kitchen while you open a can of wet food – they purr extra loudly. And this purr is not the agreeable thrumming of a content cat, but an insistent chainsaw br-rr-oom demanding attention.
Scientists digitally compared the spectral qualities of the
two types of purrs and discovered that the major difference is that the insistent purr includes a component very similar to the sound of a human baby crying. People, of course, are
innately attuned to this sound, and cats have evolved to take advantage of this sensitivity to get our attention.