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Scratch 'n Sniff: A Guide to Cats and Dogs

How did house cats evolve? Can dogs talk? Why do cats purr? Find out, in our definitive report on the science of our best friends

The Evolution of House Cats

Genetic and archaeological findings hint that wildcats became house cats earlier--and in a different place--than previously thought

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Are Dog Breeds Actually Different Species?

A humorous take on using dog breeds to prove evolution

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Veterinarians Unleash Probiotics to Ease Doggie Discomfort

A growing number of veterinarians are prescribing supplements of friendly bacteria for dogs, but is there enough scientific evidence to justify it?

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Fact or Fiction: Dogs Can Talk

Are human speech-like vocalizations made by some mammals equivalent to conversation--or just a rough estimation of it?

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