[rebeccag]

Originally Posted by QuickSilver

Abbey08, I have wondered about that too, and I would be interested to read anything that explained it in layman terms. I sort of know about other ways that DNA can be tracked - for instance, dogs and wolves might have the same type of mitochondria. I believe that these are always passed from the mother in primates (and all other species??), and that's where a lot of information about humanity's origin comes from.

Sometimes I see on Animal Planet that ridge backs are supposedly descended from some type of African wild dog type, or that chihuahuas are from foxes, but that makes no sense to me, since all dogs can breed, meaning that there must be one source species.

It is pretty amazing to look at Thor, a 4 pound yorkie with silver hair, and imagine that his genes came from wolves. Says a lot about the diversity of the genome!

That's so weird, I joked today that she looked like a fox....