livestock farming - Donkeys and mules | Britannica
Mule Animal Facts | Equus mulus - AZ Animals
MULE CROSSING: Donkey Jacks
Reasons why Mules rule | Brooke
MULE CROSSING: Breeding Quality Mules
John Stewart Longhunter 1744-1770 - The mule is a result of crossing a Jackass with a female horse. The fact that the mule is sterile does not lessen the value of the