Haimovfids wrote:
How do they know that halfsiders are all sterile?
I was wondering the same thing! Maybe they tried breeding them but their eggs were never fertile?
Well, if that's how they know it, it's not 100% certain and there is always the possibility that one of them is gonna be able to reproduce.
Thing is, it might be a genetic trait that won't pass along to their children. I am very curious to know more about this.
The commentator said it's a rare phenomenon that happens to humans as well, merging twins (sounds like something from a horror movie lol), if so I doubt it would transmit to the children.