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A zeedonk (also spelled zedonk) (also known as zebrass, zebronkey, zonkey, zebadonk, zenkey, zebrinny, or deebra) is a cross between a zebra and a donkey. The generic name for crosses between zebras and horses or asses is zebroid or zebra mule. Donkeys are closely related to zebras and both animals belong to the horse family. Zeedonks are very rare. A donkey / zebra hybrid (called a Zeedonk by Colchester Zoo). ...
For other uses, see Scientific classification (disambiguation). ...
For other uses, see Animal (disambiguation). ...
Typical Classes See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ...
Orders Subclass Monotremata Monotremata Subclass Marsupialia Didelphimorphia Paucituberculata Microbiotheria Dasyuromorphia Peramelemorphia Notoryctemorphia Diprotodontia Subclass Placentalia Xenarthra Dermoptera Desmostylia Scandentia Primates Rodentia Lagomorpha Insectivora Chiroptera Pholidota Carnivora Perissodactyla Artiodactyla Cetacea Afrosoricida Macroscelidea Tubulidentata Hyracoidea Proboscidea Sirenia The mammals are the class of vertebrate animals primarily characterized by the presence of mammary...
Families Equidae Tapiridae Rhinocerotidae The odd-toed ungulates or Perissodactyla are large to very large browsing and grazing mammals with relatively simple stomachs and a large middle toe. ...
Species - Donkey - African Wild Ass - Domestic Horse - Wild Horse - Grevys Zebra - Onager - Kiang - Plains Zebra - Cape Mountain Zebra - Hartmanns Mountain Zebra Equidae is the family of horse-like animals, order Perissodactyla. ...
Equus is Latin for horse; it may refer to: Equus, the genus of horses and their close relatives. ...
This article does not cite any references or sources. ...
The term crossbreed or crossbred refers to a hybrid animal of two purebred parents created by means of crossbreeding. ...
For other uses, see Zebra (disambiguation). ...
Binomial name Linnaeus, 1758 For other uses, see Donkey (disambiguation). ...
A zebra/donkey hybrid A zebroid is a cross between a zebra and any other equid: essentially, a zebra hybrid. ...
Species - Donkey - African Wild Ass - Domestic Horse - Wild Horse - Grevys Zebra - Onager - Kiang - Plains Zebra - Cape Mountain Zebra - Hartmanns Mountain Zebra Equidae is the family of horse-like animals, order Perissodactyla. ...
In South Africa they are called zonkeys and occur where zebras and donkeys are found in proximity to each other. Like mules, however, they cannot usually breed, due to an odd number of chromosomes disrupting meiosis. However, in The Origin of Species, Charles Darwin reported a case of a zeedonk that apparently bred with a bay mare to produce a "triple hybrid." For other uses, see Mule (disambiguation). ...
For the figure of speech, see meiosis (figure of speech). ...
Charles Darwins Origin of Species (publ. ...
For other people of the same surname, and places and things named after Charles Darwin, see Darwin. ...
// This article is about a biological term. ...
Usually a zebra stallion is paired with a horse mare or ass mare, but in 2005, a Burchell's Zebra named Allison produced a zebrass called Alex sired by a donkey at Highland plantation in the parish of Saint Thomas, Barbados. Alex, born April 21, 2005, is apparently the first zeedonk in Barbados. Burchells zebras are a species of extinct plains Zebra. ...
Saint Thomas is a parish of Barbados in the center of the island. ...
is the 111th day of the year (112th in leap years) in the Gregorian calendar. ...
Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ...
Genetics
Donkeys and wild equids have different numbers of chromosomes. A donkey has 62 chromosomes; the zebra has between 44 and 62 (depending on species). In spite of this difference, viable hybrids are possible provided the gene combination in the hybrid allows for embryonic development to birth. A hybrid has a number of chromosomes somewhere in between. The chromosome difference makes female hybrids poorly fertile and male hybrids sterile due to a phenomenon called Haldane's Rule. The difference in chromosome number is most likely due to horses having 2 longer chromosomes that contain similar gene content to 4 zebra chromosomes. Figure 1: A representation of a condensed eukaryotic chromosome, as seen during cell division. ...
Haldanes rule relating to hybrids of species and extended to speciation in evolutionary theory is easily stated: When in the offspring of two different animal races one sex is absent, rare, or sterile, that sex is the heterozygous (heterogametic) sex. ...
Common wisdom states that hybrids only occur when the zebra is the sire, but the Barbados hybrid demonstrates otherwise. Two other known zebra hinnies have been foaled but did not survive to adulthood. The rarity of zebra hinnies indicates that the smaller number of chromosomes has to be on the male side if a viable hybrid is to be produced. Before this comes into account, a successful mating needs to be accomplished in the first place though: As courtship in horses involves the mare kicking at the stallion's head for some time before allowing him to mount, and as this behavior is stronger in wild equids than in domestic horses, it is difficult enough to get a horse stallion to mate and not be put off by the rough behavior of the non-horse mare.
Zeedonks are interspecific hybrids bred by mating together two species from within the same genus. The offspring have traits and characteristics of both parents. Zeedonks vary considerably depending on how the genes from each parent are expressed and how they interact.
In captivity Though zeedonks are rare, zoos have succeeded in producing them. Colchester Zoo in Essex claimed, erroneously, to have produced the first zeedonk in 1971. Zebra-ass hybrids dating back to 1815 were reported by Charles Darwin in 1859. A breeding program at the zoo in 1975 resulted in several hybrids. In Christmas week of 1975 Colchester Zoo's third zeedonk foal was born, the result of mating a donkey with different male zebras. Previous attempts at crossbreeding zebras with horses and donkeys had failed to produce surviving foals. The zoo's aim was to produce disease-resistant work-horses for Africa. Colchester Zoo experts believed their success was due to the use of an Arabian donkey (a variety not tried before in hybridization experiments) and were hopeful that the hybrids would be viable and fertile. A zeedonk is still exhibited at Colchester, but they now have a policy of preventing interbreeding and so will not be breeding more. In the United States, the Tupelo Buffalo Park and Zoo in Mississippi has a zeedonk. Giraffes in Sydneys Taronga Zoo A zoological garden, zoological park, or zoo is a facility in which animals are confined within enclosures and displayed to the public, and in which they may also be bred. ...
For other places with the same name, see Colchester (disambiguation). ...
For other meanings of Essex, see Essex (disambiguation). ...
For other people of the same surname, and places and things named after Charles Darwin, see Darwin. ...
The Tupelo Buffalo Park and Zoo is a zoo located in Tupelo, Mississippi. ...
This article is about the U.S. state. ...
Colchester Zoo were, knowingly or unknowingly, repeating an experiment made by the Boers during the South African War when zebroids were bred as work animals. In that earlier experiment, Chapman's zebras and ponies were crossed to evolve a new animal for transport work. Afrikaners are white South Africans of predominantly Calvinist Dutch, German, French Huguenot, Friesian and Walloon descent who speak Afrikaans. ...
In Origin of Species (1859) Charles Darwin mentioned eigth colored drawings of hybrids between the ass and zebra, including the famous cross made in 1815 by Lord Moreton of a donkey and a quagga. In The Variation Of Animals And Plants Under Domestication[1], published first in 1868 and a revised second edition in 1883, Darwin wrote: "I have seen, in the British Museum, a hybrid from the ass and zebra dappled on its hinder quarters." Darwin continued, "Many years ago I saw in the Zoological Gardens a curious triple hybrid, from a bay mare, by a hybrid from a male ass and female zebra," and expanded on his early report of Lord Moreton's quagga cross. Both works pre-date the claim from Colchester Zoo. The 1859 edition of On the Origin of Species First published in 1859, The Origin of Species (full title On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life) by British naturalist Charles Darwin is one of the pivotal...
Trinomial name Equus quagga quagga Boddaert, 1785 The quagga is an extinct subspecies of the plains zebra, which was once found in great numbers in South Africas Cape Province and the southern part of the Orange Free State. ...
An "ass-zebra" is shown and likes to eat in Mexico with other zebras, they eat beanboritos and tacos!yea Zebra]] and the Somali Ass are reported from the same period.
Exotic animal breeders who house zebras sometimes breed zeedonks. Sweet clover (), introduced and naturalized to the U.S. from Eurasia as a forage and cover crop, supports insect biodiversity. ...
This article concerns Breeder, an occupation in agriculture, animal husbandry, or animal fancy. ...
See also Binomial name Linnaeus, 1758 For other uses, see Donkey (disambiguation). ...
For other uses, see Mule (disambiguation). ...
It has been suggested that Zebrula be merged into this article or section. ...
For other uses, see Zebra (disambiguation). ...
A Tijuana Zebra is a donkey that has been painted with stripes so that it looks like a zebra. ...
External links - http://www.smh.com.au/articles/2003/08/28/1062050609625.html
- Photos of ass-zebras from the 1930s
- Photos of Shadow the Zeedonk at Colchester Zoo
- Zonkey appreciation site, photos and information
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