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Be warned: the answer involves more regurgitation than you might think.

Here’s a question for anyone forced to wipe canine salvia off their face today: why do dogs lick people?

Unfortunately, at the moment, it’s not possible to know exactly what dogs are thinking as they try to mop your entire face with their tongue. However, experts have several ideas about the function of this behaviour.

Continue reading at sciencefocus.com  HERE.