I had 2 of my jennys checked 2 years ago, by a vet..for a attempt at crossing them with a Zebra, I am pretty sure it was a Grants Zebra, but my jennys were too small and would of had to have they foals in a vet clinic where they could be monitered at all times, and immediate vet help right there, in the end..I didnt go thru with it..it wold of just been too much to try to get one! I did have a opportunity to buy a Zebroid out of New York, and I also know there was a beautiful driving/riding pair born and raised in Michigan, which were later sold overseas. Donket crosses are usually termed, Zebrass, Zedonk, or Zebroid. Ashley has your Aunt ever tried to cross her zebras?? Corinne