If you or I see people kissing, we likely think, ‘That’s sweet.’ But to evolutionary biologists, a kiss leads directly to a ...

WASHINGTON (Reuters) - A kiss from a colorful reef fish called a tubelip wrasse is no one's idea of romance, being so full of slime and suction, but it is perfectly suited for eating a hazardous diet ...

Is it in his kiss? Oh, yes. Osculation, the scientific term for kissing, in many ways says everything about your compatibility with your mate and the health of your relationship. We asked scientist ...