I really don’t understand how putting a sensitive internal organ on the outside of the body to better control temperature was the easier path than sperm that can tolerate being like 2 degrees warmer
Oh yeah once it happened I understand why it stayed. But sperm producing organs started inside, so I would’ve expected slight preferences for temperature by sperm would be easier to change than moving an organ outside.
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Or make men run at lower temperature.
Become lizard
I really don’t understand how putting a sensitive internal organ on the outside of the body to better control temperature was the easier path than sperm that can tolerate being like 2 degrees warmer
It was just the first solution to be good enough
Oh yeah once it happened I understand why it stayed. But sperm producing organs started inside, so I would’ve expected slight preferences for temperature by sperm would be easier to change than moving an organ outside.
They probably moved outside when we evolved from cold-blooded to warm-blooded, and body heat was too much for the current design.