I can't remember who did it, but someone has hatched twins that were not fathered by the same male...so yes it's extremely rare, but it is possible. I'm almost thinking this has happened a couple of times, but I may be mistaken...I do know it has happened at least once though.

I would say that you can only have one male per baby, but during the last year there was also quite an odd looking baby hatched that the front half of it appeared to be fathered by one male and the back half fathered by a different one...I haven't heard any more on this one in awhile, but from what I can remember the genes from the two different males did not mix at all, so the animal may be kind of a chimera. Maybe someone else remembers this animal being hatched and dig for an update on it. If that is what this animal turns out to be, it would break the idea of one father per baby, although you still couldn't breed for example, a pastel and a spider male to normal female and be able to make a bumble bee. My understanding is that the animal would also only ever pass on one of the two genes, the other gene would do nothing other than changing the animals appearance.