Kissing is fun and it feels nice. But -- why do we do it?
According to new research, one big reason is that we need to size up our future mates.
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By Jim Forsyth SAN ANTONIO, Feb 13 (Reuters) - A kiss may be just a kiss, but when sweethearts pucker up on Valentine's Day, they wil...
It's both funny and remarkable how some of the most simple and natural acts we do each day are teeming in science. Take for example, the kiss.
By Feifei Sun
Sure, kissing feels good. But it's also an evolutionary advantage. Now a new book explains the science behind passionat...
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