I think every hybrid animal is sterile right?Originally Posted by hoax
Ligers, mules, zorses, zonkies, male calico cats (just a fun fact), all are almost always sterile. There have been 4 mule mares, that I've read about, that have gone on to breed and have a foal. One of those foals produced also had a foal, but it ended there. Those mules that were able to breed had a genotype of horse and a phenotype of a mule. That's why they were able to breed, and I'm guessing that's why all other hybrids aren't able to breed.
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