<Tr> <Th_colspan="2"> Synonyms </Th> </Tr> <Tr> <Td_colspan="2"> Equus mulus </Td> </Tr> <P> A hinny is a domestic equine hybrid that is the offspring of a male horse, a stallion, and a female donkey, a jenny . It is the reciprocal cross to the more - common mule, which is the product of a male donkey (jack) and a female horse, a mare . </P> <P> Hinnies on average are slightly smaller than mules in part because donkeys are generally smaller than horses, and growth potential of equine offspring is influenced by the size of the dam's womb . There is debate over whether this is the only reason for the size variances between the two types of hybrid equines . Some enthusiasts believe this size difference is only physiological, owing to the smaller size of the donkey dam, as compared to mares, which are generally much larger . Others claim it is a natural consequence of the reciprocal cross . The position of the American Donkey and Mule Society (ADMS) is: "The genetic inheritance of the hinny is exactly the same as the mule ." </P>

Name of a hybrid of a donkey and a horse
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