Zoology or Animal Biology
Donkeys and Mules

Why cant a mule reproduce?

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January 17, 2013 3:49PM

Mules are hybrid offspring of a male donkey (Jack) and a female horse (mare) Mules have 63 chromosomes, this odd number causes the vast majority to be born sterile. however it should be noted that female mules can reproduce, but this is very uncommon.