Donkey of Asiatic wild ass or onager, "Equus hemionus", and three subspecies of the kiang, "Equus kiang", of the Himalayan upland. A male donkey (jack) can be crossed with a female horse to produce a mule. A male horse can be crossed with a female donkey to produce a hinny. Horse-donkey hybrids are almost always sterile because horses have 64 chromosomes whereas donkeys have 62, producing offspring with 63 chromosomes. Mules are much more common than hinnies. This is believed to be caused by two factors, the first being proven in cat hybrids, that when the chromosome count of the male
Now What (horse) the 1952 American Co-Champion Older Female Horse. Now What (horse) Now What (foaled 1937, in Kentucky) was an American Thoroughbred Champion racehorse. Her dam was That's That, and her sire was the 1927 American Horse of the Year and two-time Leading sire in North America, Chance Play. Raced by Alfred G. Vanderbilt II, Now What was trained by Bud Stotler and was a champion at two. As a three-year-old, she finished second in the Molly Brant Handicap, Pimlico Nursery Stakes, and Juvenile Stakes. Now What served as a broodmare for Vanderbilt. Her most successful foal to race was Next Move,