zebra


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zebra,

herbivorous hoofed African mammal of the genus Equus, which also includes the horsehorse,
hoofed, herbivorous mammal now represented by a single extant genus, Equus. The term horse commonly refers only to the domestic Equus caballus and to the wild Przewalski's horse.
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 and the ass. It is distinguished by its striking pattern of black or dark brown stripes alternating with white. In size and body form it is intermediate between the larger horse and the smaller ass. It has a heavy head, stout body, short, stiff mane, and tufted tail. There are three zebra species; the quaggaquagga
, extinct type of zebra. It formerly inhabited open plains in S Africa, where its range overlapped that of the plains zebra, or common zebra (Equus quagga, formerly E. burchellii).
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, which became extinct in the late 19th cent., is not a separate species as was once thought but a variant of the plains zebra.

Most zebras inhabit open plains or brush country, while mountain zebras favor rocky hillsides. Zebra herds on the Serengeti of E Africa can be as large as 200,000 individuals, but all are organized in family groups led by a stallion. The plains zebras usually mix with other grazing animals, such as wildebeest and antelopes. They are swift runners, achieving speeds of up to 40 mph. Some authorities believe that the stripes evolved as visual identification to reinforce social bonds with other zebras, rather than for disguise or insect protection. The zebra's natural enemies are the lion and the leopard.

The plains zebra, or common zebra, E. quagga (formerly E. burchellii), is found throughout Africa S of the Sahara. It stands about 4 ft (120 cm) tall at the shoulder and has small ears. It has very broad stripes, which vary greatly in their pattern among the several subspecies, as well as among individuals of the same subspecies.

Grevy's zebra, E. grevyi, is a large zebra found in E Africa. It stands 4 1-2 to 5 ft (140–150 cm) at the shoulder and weighs about 600 lb (270 kg). It has large, rounded ears and numerous very narrow stripes. Grevy's zebra is now considered endangered, its numbers having been dramatically reduced since the 1970s.

Most distinctive is the mountain zebra, E. zebra, with a donkeylike build, long ears, and a characteristic stripe pattern. Unlike any other member of the genus Equus, its throat has a dewlap. One subspecies of the mountain zebra, Hartmann's zebra, found in the arid mountains and coastal plains of SW Africa, increased in numbers in the 1980s to an estimated 15,000 from about 7,000 in 1967. The other subspecies, the endangered Cape mountain zebra, is rarely found outside a protected area in South Africa.

Zebras have been hunted extensively for their flesh and skins. Zebras have been crossed with horses in an attempt to produce a draft animal, but the offspring have proved sterile and unreliable. Zebras are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Mammalia, order Perissodactyla, family Equidae.

zebra

[′zē·brə]
(vertebrate zoology)
Any of three species of African mammals belonging to the family Equidae distinguished by a coat of black and white stripes.

zebra

any of several mammals of the horse family (Equidae), such as Equus burchelli (the common zebra), of southern and eastern Africa, having distinctive black-and-white striped hides

ZEBRA

A data management package in the CERN Program Library.

Zebra

(1) A connector with zebra-like stripes. See elastomeric connector.

(2) A printer command language from Zebra Technologies. The Zebra programming language (ZPL) is used to print labels and barcodes.

(3) An early computer designed by Dutch computer pioneer W. L. Van der Pool and manufactured by Standard Telephones and Cables Limited in England. First placed in service in 1958, a few dozen units were sold in the U.K. and Europe.


The Zebra Computer
Paper tape and teleprinters were the I/O and a magnetic drum held 8K 33-bit words. See magnetic drum. (Image courtesy of The Computer History Museum, www.computerhistory.org)
References in periodicals archive ?
In addition to revealing nine different subpopulations of plains zebras, the new genetic analysis also suggested that all the members of the zebra species can trace back their lineage almost 370,000 years to a large area of wetlands of the Zambezi and Okavango basins in southern Africa, and that the extinct quagga is a "plains zebra variation.
2014, Zebra has embarked on a culture initiative to progress as One Zebra.
Zebra Technologies, Zebra and the Zebra logo are trademarks or registered trademarks of Zebra Technologies Corporation and are used under license.
This acquisition will transform Zebra into a leading provider of solutions that deliver greater intelligence and insights into our customers' enterprises and extended value chains," said Anders Gustafsson, Zebra's chief executive officer.
Significant fish predation on zebra mussels Dreissena polymorpha in Lake Champlain, U.
Zebra stood proudly and told them all, "I'm a zebra, and that's very special.
Once you have developed your profile, you have to learn how to spot a Zebra.
When Pieter told me no bowhunter had taken a zebra on his concession in two years, and he personally knew of no woman who had ever taken one with a bow, I became even more determined to accomplish that feat.
Gastropods are of concern because of their influence on productivity and community characteristics (Tuchman and Stevenson, 1991) and are threatened by zebra mussels (Haynes et al.
Working in partnership with several Kenyan non-profits and AZA-accredited zoo partners, including Denver Zoo, John Ball Zoo, Sedgwick County Zoo, San Diego Zoo, the Grevy's Zebra Trust, Northern Rangelands Trust, and Lewa Wildlife Conservancy among others, the zoo's Horn of Africa Conservation Project supports community awareness and wilderness preservation in the endangered zebra's home range.
By modifying a method used to flavor foods, researchers have made a substance that poisons the zebra mussel.
The movie follows four best friends - Marty the Zebra (voiced by Chris Rock), Alex the Lion (Ben Stiller), Gloria the Hippo (Jada Pinkett Smith) and Melman the Giraffe (David Schwimmer) - who go from a pampered life at the New York City Central Park Zoo to the jungles of Madagascar.