Hey there Bill, I’ve had both a Nidoran Male and Female since I was little. I grew up with them by my side and they grew fond of each other. Now they’ve evolved into Nidoking,and Nidoqueen and I was hoping to breed them to get a new generation of Nidorans. I’ve hit a snag though, it seems from whatever reason, they can’t breed. I went to a few other experts and they told me that Nidoqueens can’t breed with Nidokings, and i was wondering if you had any idea why?

By and large, nidoqueen and nidorina are incapable of breeding because for whatever reason, evolution sterilizes female nidoran. Male nidoran and their evolutions, meanwhile, retain the ability to breed throughout their lives, and thus, male nidoran often mate with either female nidoran or ditto to perpetuate their species; they don’t actually mate with a female nidoran’s advanced forms.

As for why evolution sterilizes female nidoran, that’s still a subject of debate in the scientific community, but to be fair, considering the fact that male nidoran grow longer, sharper, and more numerous barbs upon each subsequent evolution (including and especially exactly where you would think), one can hardly blame nature for wanting to offer female nidoran a bit of mercy, if you get my meaning.