Hinny to the action of imprinted genes." A male hinny is properly called a "horse hinny", and a female hinny is properly called a "mare hinny", though in British English both female hinnies and female donkeys are sometimes called "jennets". Hinnies are difficult to obtain because of the differences in the number of chromosomes of the horse and the donkey. A donkey has 62 chromosomes, whereas a horse has 64. Hinnies, being hybrids of those two species, have 63 chromosomes and are sterile. The uneven number of chromosomes results in an incomplete reproductive system. According to the ADMS: "The equine hybrid
What A Summer What A Summer What A Summer (foal in 1973) was an American Thoroughbred Champion racehorse who defeated both male and female competitors. She was bred in Maryland by Milton Polinger. She was a gray out of the mare Summer Classic who was sired by Summer Tan. Her sire was What Luck, a multiple stakes winning son of U.S. Racing Hall of Fame inductee Bold Ruler. What A Summer is probably best remembered for her win in the Grade II $65,000 Black-Eyed Susan Stakes over stakes winners Dearly Precious and Artfully on May 14, 1976. What A Summer was trained very