They are Zebroids…
This little guy is indeed for real, he is often called a Zebrass, or a Zonkey. Since my post Donkey, Burro, Ass, Mule, and What They All Mean,the Zebrass seemed to catch the attention, or curiosity of many readers. Since this blog is my informative avenue to educate those who keep all critters large and small, seems only fitting to pass along what I know about this closely related member of the horse family.
Technically they do have a proper name, and is NOT Zebrass or Zonkey . The correct terms are, zebrinnies, zebrulas, and zedonks. A zebrinny is the offspring of a male donkey and a female zebra; a zebrula is the offspring of a male zebra and a female donkey; a zedonk is the offspring of any zebra and any donkey. Or, they may be called zebroids (crosses between a zebra and some other horse species).
There is generally no distinction made as to which zebra species is used. Many times when zebras are crossbred, they develop some form of dwarfism. Breeding of different branches of the equine family, which does not occur in the wild, generally results in infertile offspring. The combination of sire and dam also affects the offspring.
For More Information:
International Zebra -Zorse- Zonkey Association