Very very very unlikely, unless there was some disease which we couldn’t cure and it affected nearly everyone at the beginning of their 20s and survival depended on this strange new organ. But other than that, it’s unlikely, unless we did it using technology.
I don’t know. There’s not any environmental factor that’s currently causing mass extinction of humans, so I can’t see a reason why we’d evolve new body parts. We might evolve to need less Oxygen from the air or something like that if global warming continues, but even that’s a bit far-fetched, I think.
Comments