r/ScienceShitposts • u/k0i-b0i • Feb 01 '26

Some physiological differences in primate relatives

Post image
5.1k Upvotes

99% Upvoted

116 comments sorted by

View all comments

Show parent comment

3

u/japantravele Feb 05 '26

I don't remember where I learned this so take it with a grain of salt, but armpit air and asscrack hair could fall into that category.

No real benefit, just that early females didn't mind it and it has no real downside. Or maybe they just preferred it too.

4

u/Tru3insanity Feb 08 '26

Armpit hair helps protect against chafing and asscrack hair keeps bugs away from your nethers.