Mule vs Hinny. So I stopped to say hi to some of Firefly’s band and thought I would explain the difference between a mule and a hinny, and then how to make a Zorse. So it’s really easy to know which is which if you know the mother, so Firefly is a mule because we know his mother is Ladybug who is a mustang mare. He would be a Hinny if his mother was a donkey. Cassidy was a mini Hinny which would have been the cross between a miniature horse stallion and a miniature Jenny donkey. And we now think