A weird thing to me is that we oxygenate blood using the lungs at all. How have we not invented an artificial gill/blood oxygenating system that bypasses the lungs yet?
You're more than welcome to evolve it.
...well, your future children are, I should say.
Cuthalion's art is the prettiest art of all the art. Like my avatar.
Number of times Roland St. Jude has sworn revenge upon me: 1