Mule vs. Donkey: Grasping Their Distinctive Traits • 7ESL
The Mule Hybrid
Mule - Alchetron, The Free Social Encyclopedia
ACCOUNTS OF FERTILE MULES AND HINNIES
Species & speciation (article) | Speciation | Khan Academy
Species HorseDonkey Mule Members of a species may be reproductively isolated in separate populations. New species arise when one existing species splits. - ppt download