The evolutionary purpose of kissing has long baffled scientists. Smooching is risky (teeth) and inherently gross (80 million bacteria are estimated to be transferred in a 10 second kiss). And yet, ...
Kissing may feel like a very human habit, but new research suggests it has much deeper roots. A team of scientists says the behavior likely began more than 20 million years ago, long before modern ...
Kendra Pierre-Louis: For Scientific American’s Science Quickly, I’m Kendra Pierre-Louis, in for Rachel Feltman. There is something about a good kiss that can stick with you, that can give you ...
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