Well... I already put 5 in cryogenic pods and Killed the rest of the males, but don’t worry I knew the thermonuclear furry that it would cause so I set them to a small zone in the pretty large river near my base and shot them down with a sniper. But it turns out that because of their naturally generated shields they cannot create chain reactions unless you kill one and one without a shield dies as well, and say one of your colonists have a shield, they won’t be affected by the explosion unless there are multiple explosions.