A “zonkey” is a hybrid cross produced by mating a zebra and a donkey. Zonkeys are not a true species because they have an odd number of chromosomes and cannot reproduce. While zonkeys are rare, they are bred in a number of zoos and specialized farms around the world.
Here is a zonkey at Catawba Farms in Newton, North Carolina. It doesn’t seem to look either like a donkey or a zebra!