She had their first when she was still a Nidoran F most likely since even in the comic it talks about Nidorna and Nidoqueen not being able to become pregnant. Still a very odd thing to have for the species that I thought was a dev oversight in the early games but the fact that it has remained all this time means its a canon thing.
She had their first when she was still a Nidoran F most likely since even in the comic it talks abou