A new study finds that half of human cultures don’t practice romantic lip-on-lip kissing. Animals don’t tend to bother either. So how did it evolve?
Source: BBC – Earth – Why do humans kiss each other when most animals don’t?
A new study finds that half of human cultures don’t practice romantic lip-on-lip kissing. Animals don’t tend to bother either. So how did it evolve?
Source: BBC – Earth – Why do humans kiss each other when most animals don’t?
