this post was submitted on 22 Nov 2025
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Yes I know about serotonin etc, but why does the stimulus of petting a fluffy critter evoke that response in the first place?

My personal uninformed armchair theory: We're apes, and apes pick bugs out of each other's fur to bond as a group. But when our ancestors forsook the trees for the plains, we shed our fur to gained sweat glands in order to become the ultimate persistence hunters. Yet the urge to groom remains. We have no fur and we must pet.

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[–] lennybird@lemmy.world 2 points 8 hours ago

Relevant documentary on The Science of Touch I watched a few years back. I think they mention force and speed matter in stimulating oxytocin.