MrX
never had an intact pistachio club
- Since
- Jan 27, 2010
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There aren't many science questions that I've wondered about many times but never even googled. But there's this one.
How is it that evolution has allowed us to have testicles on the outside?
I remember from school and whatnot that sperm need a slightly lower temperature than body temperature and that's why we've got external balls. But, surely evolution could have allowed for more resilient sperm instead of completely vulnerable genitalia.
Evolutionary speaking, the next most important thing to being alive is being able to reproduce. All of our vital organs are encased in bony armor, and our poor balls are just about as vulnerable as possible. It seems contrary to natural selection.
Please don't just google this for me. I'll get around to that. Anyone have theories of their own?
How is it that evolution has allowed us to have testicles on the outside?
I remember from school and whatnot that sperm need a slightly lower temperature than body temperature and that's why we've got external balls. But, surely evolution could have allowed for more resilient sperm instead of completely vulnerable genitalia.
Evolutionary speaking, the next most important thing to being alive is being able to reproduce. All of our vital organs are encased in bony armor, and our poor balls are just about as vulnerable as possible. It seems contrary to natural selection.
Please don't just google this for me. I'll get around to that. Anyone have theories of their own?