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large hoofed mammal, genus Bison, of the cattlecattle,
name for the ruminant mammals of the genus Bos, and particularly those of the domesticated species, Bos taurus and B. indica. The term oxen, broadly used, refers also to closely related animals, such as the buffalo and the bison.
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 family. Bison have short horns and humped, heavily mantled shoulders that slope downward to the hindquarters. The European bison, or wisentwisent
, name for the European bison, Bison bonasus. It is a close relative of the American bison, B. bison. Longer legged and less heavily built than its American cousin, the wisent may reach a height of 54 to 60 in.
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, Bison bonasus, has a less luxuriant mane and beard than the American species, B. bison.

The American bison is commonly called buffalo, but true buffalobuffalo,
name commonly applied to the American bison but correctly restricted to certain related African and Asian mammals of the cattle family. The water buffalo, or Indian buffalo, Bubalus bubalis, is found in S Asia.
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 are African and Asian animals of the same family. B. bison is characterized by a huge, low-slung head and massive hump; its legs are shorter than those of the wisent. Males may reach a shoulder height of over 5 ft (1.5 m), a body length of 9 ft (2.7 m), and a weight of 2,500 lb (1,130 kg). The winter coat of the American bison is dark brown and shaggy; it is shed in spring and replaced by a coat of short, light-brown fur. Bison graze on prairie grasses, migrating south in search of food in the winter.

They formerly were found over much of North America, especially on the Great Plains, and were hunted by Native Americans for their flesh and hides. During the 19th cent. they were subjected to a wholesale slaughter that resulted in their near extinction. They were killed for their tongues, regarded as a delicacy, and shot for sport from trains. Estimates of the number of bison in North America, at their peak, range from 24 million to 60 million. By the middle of the 19th cent. the bison was extinct E of the Mississippi, and by 1900 there remained only two wild herds in North America, one of plains bison in Yellowstone Park, and one of the larger variety, called wood bison, in Canada. Protective laws were passed beginning at the end of the last century, and the bison population has since risen from a few hundred to many thousands, although most bison not on federal lands have been hybridized to some degree with domestic cattle. The wood bison may have vanished as a distinct race through hybridization with the plains bison. The American bison was made the national of the United States by an act of Congress in 2016.

Bison 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 Artiodactyla, family Bovidae.


See T. McHugh and V. Hobson, The Time of the Buffalo (1972); J. N. Mcdonald, North American Bison (1981); V. Geist, Buffalo Nation (1996).


(vertebrate zoology)
The common name for two species of the family Bovidae in the order Artiodactyla; the wisent or European bison (Bison bonasus), and the American species (Bison bison).


1. a member of the cattle tribe, Bison bison, formerly widely distributed over the prairies of W North America but now confined to reserves and parks, with a massive head, shaggy forequarters, and a humped back
2. a closely related and similar animal, Bison bonasus, formerly widespread in Europe


GNU's replacement for the yacc parser generator. Bison runs under Unix and on Atari computers. It was written by Robert Corbett.

Latest version: 1.28, as of 2000-05-22.

As of version 1.24, Bison will no longer apply the GNU General Public License to your code. You can use the output files without restriction.

FTP or your nearest GNU archive site.

E-mail: <>.

Bison++ is a version which produces C++ output.


The Free Software Foundation's version of yacc.
References in periodicals archive ?
In the last 15 years, our understanding of this disease has evolved, offering an opportunity to save millions of taxpayer dollars, while giving Yellowstone bison more room to roam.
Wood bison are the largest land mammal in the western hemisphere, with females weighing between 1,200 and 1,400 pounds and herd males weighing about 2,000 pounds.
In this article, I focus on C, the opportunity cost of resources necessary for production of the asset, and I illustrate confusion about the tragedy of the commons with a discussion of the American bison.
He got himself a herd of Plains Bison to remind him of his American home, but he had to sell them on when compulsory tuberculosis testing was introduced.
According to PopSci, many bison have some cattle genes, but Yellowstone's bison are "genetically uninterrupted.
Conservation strategies may have saved the bison from extinction, but it was the commercial bison industry that resurrected the species--of today's 400,000 plains bison, about 95 percent live within managed livestock herds.
Yegor Borisov noted that the Ministry of Nature Protection of the Republic of Sakha (Yakutia) plans an annual release of a new batch of forest bison to increase the number of livestock that are on free grazing.
The reservation was first designed to keep between eight to twelve bison.
Bison, short for Boston Illiquid Securities Offering Network, is a fintech company focused on innovation for the private markets.
Patchy grazing and other activities of bison such as wallowing, trampling, and dung and urine deposition have been shown to increase local habitat heterogeneity, and this increase in patchiness and diversity of microhabitats may explain the higher plant species richness found in bison-grazed prairies (Steinhauer and Collins, 1995; Hartnett et al, 1996; Knapp et al, 1999).
Bison Interests acquired 1,666,667 RMP shares at a price of USD 0.
Bison once roamed the Americhn West in numbers that seemed incomprehentsible.