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Humans May Be More Monogamous Than Meerkats, But Beavers Have Us Beat

Learn more about mammal monogamy rates, which support the theory that the primary mating pattern in Homo sapiens is monogamy.
Popular Science

Why do dogs lick humans? It could be a sign of affection.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Between humans, a kiss on the mouth or cheek is a clear signal of ...