First kiss dates back 21 million years, say scientists

November 19, 2025

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1 min read

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BBC

A new study looks at how the mouth-on-mouth smooch came into being, and concludes that Neanderthals also kissed.

1 hour ago Victoria GillScience correspondent, BBC News Humans do it, monkeys do it, even polar bears do it. And now researchers have reconstructed the evolutionary origins of kissing. Their study suggests that the mouth-on-mouth kiss evolved more th... [2719 chars]

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