This just came up under the "incest" post. Technically, they are both dogs and should be able to breed. The size difference obviously prevents breeding from happening naturally. But what if some mad scientist impregnated a Dane using Chihuahua sperm? (I think the reverse would kill the Chihuahua if she actually got pregnant, so we'lll set that aside). Would viable puppies result? And what would they look like? Or would the two breed types have such radically different genes that the resulting puppies would die in teh womb or shortly after birth?
Anyone know for sure?
(Dont' try this at home, kids!)