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sterlingphoenix t1_iuf86fp wrote on October 30, 2022 at 9:39 PM

Reply to comment by WeddingLion in ELI5: How come humans have two big muscle and fat pouches on either side of their anus? by CJsTT

Again, you're talking about modern humans.

You can read about this hypothesis here. There are critiques of it, but those are of the evolutionary path, not the fact that humans are amazing endurance runners.