For many people, a dog’s lick feels like pure affection. It’s instinctive, emotional, and often interpreted as love or bonding. From an evolutionary and behavioral standpoint, licking is a natural ...
The evolutionary purpose of kissing has long eluded scientists. Smooching is risky, given things like pointy teeth, and inherently gross, given an estimated 80 million bacteria are transferred in a 10 ...
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