Can an animal be the hybrid of two existing animals?
A hybrid is an animal or plant produced from parents of different breeds or types.
The mule is a hybrid - it is the offspring of a male donkey and a female horse. But you cannot mate two mules and get another mule, because they are sterile.
Hybridisation also takes place between coyotes and domestic dogs, most possibly because coyotes and domestic dogs are much more closely related than horses and donkeys are.
Many factors prevent hybridisation between species. Most will not mate in the first place. If they do, or if humans artificially inseminate an animal to see what kind of animal is produced, many will not produce offspring because the sperm and egg do not recognise each other. Even if offspring is produced, it may be sterile, like in the case of the mule.
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