I read this does have a functional reason: Sperm cells have to be kept at slightly lower temperature than the body temperature, so if the testicles were inside the body, the sperm wouldn't survive.
Of course you could ask why sperm is so temperature sensitive in the first place...
If elephants did it, I’m sure we can too.
We did do it! It's called testicles!
But ours are outside. :(
They have a complex system to mantain the specific temperature. Huaman and other smaller animal do not have enough space to it inside.
If we were as large as elephants, then yes.
Now that sounds like a design flaw in sperm cells
Yeah, it makes more sense to put all the fragile body parts in one place. For instance, the face.
I think I prefer the solution evolution came up with!