In its common modern meaning, a mule is the offspring of a male donkey and a female horse.

This can be compared with the offspring of a male horse with a female donkey, called a hinny.

The term "mule" was formerly applied to the offspring of any two creatures of different species – in modern usage, a "hybrid".

The mule, easier to breed and usually larger in size than a hinny, has monopolised the attention of breeders.

The chromosome match-up more often occurs when the jack (male donkey) is the sire and the mare (female horse) is the dam.

Mules and hinnies are almost always sterile..

For more information about the topic Mule, read the full article at Wikipedia.org, or see the following related articles:

Hinny — A hinny is the offspring of a male horse and a female donkey (jennet or jenny). They are rarer than mules, which are the offspring of a male donkey ...  > read more

Zeedonk (zebra - donkey hybrid) — A zeedonk (also spelled zedonk) (also known a zebrass, zebronkey, zonkey, zebadonk, zenkey or deebra) is an interspecies cross between a zebra and a ...  > read more

Donkey — The donkey or ass is a domesticated animal of the horse family. Donkeys have a reputation for stubbornness, but this is due to some handlers' ...  > read more

Zorse (zebra - horse hybrid) — A zorse is the offspring of a zebra stallion and a horse mare. It is a zebroid: this term refers to any hybrid equine with zebra ancestry. The zorse ...  > read more

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World's First Cloned Equine Athletes Training For Races (May 17, 2006) — It will be nature vs. nurture when the University of Idaho's two mule clones Idaho Gem and Idaho Star take to the racetrack at Winnemucca, Nev., June 3 and 4 for the first leg of mule racing's triple ...  > read more

University Of Idaho, Utah State University Team First To Clone Equine (May 30, 2003) — A University of Idaho-Utah State University research team is the first worldwide to clone a member of the horse family, a mule, according to an article to be published in the journal ...  > read more

Two Rapidly Evolving Genes Offer Geneticists Clues To Why Hybrids Are Sterile Or Do Not Survive (November 30, 2006) — While hybrids -- the result of the mating of two different species -- may offer interesting and beneficial traits, they are usually sterile or unable to survive. For example, a mule, the result of ...  > read more

Mule Deer Moms Rescue Other Fawns (May 31, 2007) — An intriguing study of mule deer and whitetail deer showed that both species responded to the recorded distress calls of fawns, similar to the responses elicited when coyotes attack fawns, with mule ...  > read more

Geckos: It's Not Always About Sex (June 9, 2005) — Australia's Bynoe's gecko -- a line of all-female geckos -- doesn't need sex or a male to reproduce and, contrary to expectations, these "Wonder Woman" geckos can run farther and faster than their ...  > read more

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