![\"Kiss](\"https:\/\/shreepost.com\/wp-content\/uploads\/2025\/11\/kiss-1.jpg\")
Researchers found smooching odd – it\u2019s not needed to stay alive or have babies. Still, people everywhere do it, also some creatures in the wild share similar behaviors.<\/p>\n
Looking at how animals kiss, scientists made a kind of ancestry chart to follow where the act began. They defined it strictly – no emotions involved – just touching mouths without fighting, sharing food, or biting. The contact had slight motion of lips or mouth, nothing more. It wasn’t about love but physical interaction minus aggression or eating.<\/p>\n The study looked at primates – particularly big apes – to figure out where human kissing came from.![\"Kiss](\"https:\/\/shreepost.com\/wp-content\/uploads\/2025\/11\/kiss-2.jpg\")
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\n– Kissing started roughly 21.5 million years back.
\n– The research came out in a magazine called Evolution plus Human Behavior.
\n– A scientist from Oxford, Dr. Matilda Brindle, said people, chimps, besides bonobos, give kisses. Because of\u00a0 \u00a0 \u00a0this behavior, she figured their shared great-great-grandparent probably smooched as well.
\n– The way scientists describe kissing fits wolves too, as well as prairie dogs, polar bears that rely a lot on\u00a0 \u00a0 \u00a0 \u00a0 \u00a0their tongues, or albatrosses sometimes.<\/li>\n<\/ul>\n
\nNeanderthals vanished roughly 40,000 years back – yet they still shared kisses. While gone now, their habits included smooching others. Back then, affection wasn’t rare among them either.<\/p>\n
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