PJ and I raised this miniature donkey shortly after we were married. Having to get up every two hours to feed Sophie was our first parenting lesson*. The veterinarians all said that chances were slim that she would survive. She did. For 19 years.
We did this with baby pigs, lambs, goats, and calves. We may have tried wild animals too. I just can't remember.
* PJ did this a LOT more than I did.