User blog comment:Lord Loss/Monster Appreciation Week: Baleful Gigginox/@comment-4697976-20130527011638

So, assuming that being a baleful isn't a sex linked trait (as all gigginox seem to be parthenogenic), and it's ressesive, let's call the gene that affects what the internal sacs produce...P (for poison), and p (for electricity). Now, since baleful gigginoxes do not seem to be able to produce young, that makes them quite rare. Also, gigginoxes do not seem to require a mate, which makes the mutation ever rarer. Basically, the only way that this subspecies can be born is if a gigginox with the genotype Pp (Poisonous, but contains the resessive gene) mates with itself, there's a 25% chance of a baleful gigginox being born, and a 50% chance of a gigginox carrying the gene within it (allowing it the chance to birth a baleful gigginox). Then again, with how many giggis are born from a single egg, there should be a fair number of these things before predators get to them