Donkey
Donkeys can interbreed with other members of the family Equidae, 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 for mule production. The hybrid between a stallion and a jenny is a hinny, and is less common. Like other inter-species hybrids, mules and hinnies are usually sterile. Donkeys can also breed with zebras in which the offspring is called a zonkey (among other names).
Aquila (genus)
Members of "Aquila" (excluding those moved to "Clanga" and "Hieraaetus", but including "A. fasciata/spilogaster") share two deletions in the (nuclear) LDH gene, as well as similarities in mitochondrial cyt-B gene sequence, though one of these deletions is reverted in "A. chrysaetos".Numerous fossil taxa of eagles have been described. Many have been moved to other genera, but several appear to be correctly assigned to this genus:Whether ""Hieraaetus" edwardsi" (Middle -? Late Miocene of SW Europe) belongs into "Aquila" or the hawk-eagles (if the latter are indeed distinct) is unclear. Its initial name, ""Aquila" minuta" , is preoccupied by a junior synonym of the booted eagle, "A. minuta" .