at some point they backtracked on scrotality
October 3, 2018 9:59 AM Subscribe
Natural selection has sculpted the mammalian forelimb into horses’ front legs, dolphins’ fins, bats’ wings, and my soccer ball-catching hands. Why, on the path from the primordial soup to us curious hairless apes, did evolution house the essential male reproductive organs in an exposed sac? It's like a bank deciding against a vault and keeping its money in a tent on the sidewalk.Why are testicles kept in a vulnerable dangling sac? It’s not why you think.
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