Equus (genus) a female horse. With rare exceptions, these hybrids are sterile and cannot reproduce. A related hybrid, a hinny, is a cross between a male horse and a female donkey. Other hybrids include the zorse, a cross between a zebra and a horse and a zonkey or zedonk, a hybrid of a zebra and a donkey. In areas where Grévy's zebras are sympatric with plains zebras, fertile hybrids do occur. Equines have significant differences in size, though all are characterized by long heads and necks. Their slender legs support their weight on one digit (which evolved from the middle digits). Grévy's
Poitou donkey Poitou donkey The Poitou donkey or Poitou ass (), also called the Poitevin donkey or simply the Poitou, is a breed of donkey originating in the Poitou region of France. It is one of the largest donkey breeds, and was selected for size so that it could be used for the production of large working mules, in conjunction with the Poitevin horse breed. It is known for its distinctive coat, called a "cadanette", which hangs in long, ungroomed cords. Breeders originally prized the coats highly, but today, many Poitou donkeys are shorn for hygiene reasons. Poitous developed in the French