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Kissing in the rain might be a standard scene in a romcom, but when you think about it, locking lips is quite a strange thing for us humans to do. In a paper in the journal Evolutionary Anthropology, ...

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Lip-on-lip kissing is not nearly as universal as we might think it is, so can the diverse number of ways that humans kiss reveal what it is about this intimate act that we find important? Less than ...