This video is intended for informational and educational purposes. It contains scenes which some viewers may find offensive. Viewer Discretion is Advised! Donkeys can interbreed with other members of the Equidae family, and are commonly interbred with horses. The hybrid between a jack and a mare is a mule, valued as a working and riding animal in many countries. Some large donkey breeds such as the Asino di Martina Franca, the Baudet de Poitou and the Mammoth Jack are raised only