Is that possible? I thought that it was possible for members of the same Genus to be closely related enough to produce viable offspring, but only members of the same species can produce fertile offspring. That's the definition of species, actually, so I don't see how a hybrid could accidentally muddy up the gene pool.
Like mules- you can buy a mule, but it's not going to make baby mules. And if you bought it thinking it was a horse and planned on breeding it, you got ripped off.
Are snakes different? Or are the different types just significantly different morphs of the same species- and if so, how come they aren't mixing it up on their own in the wild?
This is a serious question, I really don't know and now I'm curious.