hatchlings unable to open mouth

[Hanako]

Originally Posted by alley cat

Is your male elderly? Or have your females previously been with an old male?
Somebody I know had an old male who seemed to be the cause of some babies born with only one eye or none.

No, my male is 10/11 years old. But the females also had contact with a few youngsters males 4-5 years old. Could immature sperm cause disability? (I don't even know if the youngsters successfully managed to do the action, because while they definitely are willing, their technique still needs some improvement. At the moment they are very willing to do if from any side, front or back of the female.)