A zony is the offspring of a zebra stallion and a pony mare. Medium size pony mares are preferred in order to produce riding zonies, but zebras have been crossed with smaller pony breeds such as the Shetland resulting in so-called "Zetlands". It is a zebroid: this term refers to any hybrid equine with zebra ancestry.Cossar Ewart, Professor of Natural History at Edinburgh (1882-1927) and a keen geneticist, crossed a zebra stallion with pony mares in order to investigate the theory of telegony, or paternal impression. His interest had been provoked by the famous zebra/horse hybrids bred by Lord Morton in 1815 from a chestnut 7/8ths Arabian mare and a quagga stallion.In "Origin of Species" (1859) Charles Darwin wrote that "In Lord Morton's famous hybrid from a chestnut mare and male quagga, the hybrid, and even the pure offspring subsequently produced from the mare by a black Arabian sire, were much more plainly barred across the legs than is even the pure quagga."

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