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Bison bison

Bison bison (*)

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Mammalia
Subclassis: Theria
Infraclassis: Placentalia
Superordo: Cetartiodactyla
Ordo: Artiodactyla
Subordo: Ruminantia
Familia: Bovidae
Subfamilia: Bovinae
Genus: Bison
Species: Bison bison
Subspecies: B. b. athabascae - B. b. bison - B. b. septemtrionalis


Bison bison (Linnaeus, 1758)


* Bos bison (Linnaeus, 1758)


* Bison bison on Mammal Species of the World.
* Mammal Species of the World: A Taxonomic and Geographic Reference, 2 Volume Set edited by Don E. Wilson, DeeAnn M. Reeder

Vernacular names
Català: Bisó americà
Česky: Bizon americký
English: American Bison
עברית: ביזון אמריקאי
Magyar: Amerikai bölény
日本語: アメリカバイソン
Polski: Bizon
Português: Bisão-americano
Türkçe: Amerika bizonu
中文: 犎牛


The American bison (Bison bison), also commonly known as the American buffalo, is a North American species of bison that once roamed the grasslands of North America in massive herds. Their range once roughly comprised a triangle between the Great Bear Lake in Canada's far northwest, south to the Mexican states of Durango and Nuevo León, and east along the western boundary of the Appalachian Mountains.[2] Due to commercial hunting and slaughter in the 19th century, the bison nearly went extinct and is today restricted to a few national parks and other reserves.

Two subspecies or ecotypes have been described: the plains bison (Bison bison bison), smaller in size and with a more rounded hump, and the wood bison (Bison bison athabascae) – the larger of the two and having a taller, square hump.[3][4][5][6][7][8] Furthermore, it has been suggested that the plains bison consists of a northern (Bison bison montanae) and a southern subspecies, bringing the total to three.[6] However, this is generally not supported. The wood bison is one of the largest species of bovid in the world, surpassed by only the Italian Chianina, the Asian gaur and wild Asian water buffalo. It is the largest extant land animal in North America.

An adult male bison, called a bull, on a Nebraska wildlife refuge

A bison has a shaggy, long, dark brown winter coat, and a lighter weight, lighter brown summer coat. As is typical in ungulates, the male bison are slightly larger than the female. Bison bulls can reach up to 6 feet 6 inches (2 m) tall, 11 feet 6 inches (4 m) long, and weigh up to 2,200 pounds (1,000 kg).[9] The biggest specimens on record have weighed as much as 2,500 pounds (1,130 kg). The heads and forequarters are massive, and both sexes have short, curved horns that can grow up to 2 feet (61 cm) long, which they use in fighting for status within the herd and for defense.

Bison are herbivores, grazing on the grasses and sedges of the North American prairies. Their daily schedule involves two-hour periods of grazing, resting and cud chewing, then moving to a new location to graze again. Bison mate in August and September; gestation is 285 days. A single reddish-brown calf nurses until the next calf is born. If the cow is not pregnant, a calf will nurse for 18 months. Bison cows are mature enough to produce a calf at 3 years of age. Bison bulls may try to mate with cows at 3 years of age, but if more mature bulls are present, they may not be able to compete until they reach 5 years of age. Bison have a life expectancy of approximately 15 years in the wild and up to 25 years in captivity.

For the first two months of life, calves are lighter in color than mature bison. One very rare condition is the white buffalo, in which the calf turns entirely white. White bison are considered sacred by many Native Americans.


Some consider the term "buffalo" somewhat of a misnomer for this animal, as it is only distantly related to either of the two "true buffalo," the Asian water buffalo and the African buffalo. However, "bison" is a Greek word meaning ox-like animal, while "buffalo" originated with the French fur trappers who called these massive beasts bœufs, meaning ox or bullock – so both names, "bison" and "buffalo," have a similar meaning. In reference to this animal, the term "buffalo," which dates to 1635, has a much longer history than the term "bison," which was first recorded in 1774.[10] The American bison is more closely related to the wisent or European bison.

Differences from European bison
Skulls of European bison (left) and American bison (right)

Although they are superficially similar, the American and European bison exhibit a number of physical and behavioral differences. The American species has 15 ribs, while the European bison has 14. The American bison has four lumbar vertebrae, while the European has five.[11][dubious – discuss] Adult American bison are not as rangy in build, and have shorter legs.[12] American bison tend to graze more, and browse less than their European cousins, due to their necks being set differently. Compared to the nose of the American bison, that of the European species is set farther forward than the forehead when the neck is in a neutral position. The body of the American bison is hairier, though its tail has less hair than that of the European bison. The horns of the European bison point forward through the plane of its face, making it more adept at fighting through the interlocking of horns in the same manner as domestic cattle, unlike the American bison which favors charging.[13] American bison are more easily tamed than their European cousins, and breed more readily with domestic cattle.[14]

Range and population
American bison grazing in Custer State Park in South Dakota.

There are approximately 500,000 bison in captive commercial populations (mostly plains bison) on about 4,000 privately owned ranches. Under the IUCN Red List Guidelines, commercial herds are not eligible for consideration in determining a Red List designation, therefore the total population of bison calculated in conservation herds is approximately 30,000 individuals and the mature population consists of approximately 20,000 individuals. Of the total number presented, only 15,000 total individuals are considered wild bison in the natural range within North America (free-ranging, not confined primarily by fencing).[15]

Bison are now raised for meat and hides. The majority of bison in the world are being raised for human consumption. Bison meat is lower in fat and cholesterol than beef,[16] a fact which has led to the development of beefalo, a fertile crossbreed of bison and domestic cattle. In 2005, about 35,000 bison were processed for meat in the U.S., with the National Bison Association and USDA providing a "Certified American Buffalo" program with birth-to-consumer tracking of bison via RFID ear tags. There is even a market for kosher bison meat; these bison are slaughtered at one of the few kosher mammal slaughterhouses in the U.S., and the meat is then distributed nationwide.

Bison are found in both publicly and privately held herds. Custer State Park in South Dakota is home to 1,500 bison, one of the largest publicly held herds in the world. Wildlife officials[who?] believe that free roaming and genetically pure herds on public lands in North America can be found only in Yellowstone National Park, Henry Mountains in Utah, Wind Cave National Park in South Dakota, Mackenzie Bison Sanctuary in the Northwest Territories, Elk Island National Park and Wood Buffalo National Park in Alberta, and Prince Albert National Park in Saskatchewan.
An American bison near a hot spring or fumarole in Yellowstone National Park

Recent genetic studies of privately owned herds of bison show that many of them include animals with genes from domestic cattle. For example, the herd on Santa Catalina Island, isolated since 1924, after being brought there for a movie shoot, were found to be mostly crossbreeds.[17] It is estimated that there are as few as 12,000 to 15,000 pure bison in the world. The numbers are uncertain because the tests used to date – mitochondrial DNA analysis – indicate only if the maternal line (back from mother to mother... ) ever included domesticated bovines and thus say nothing about possible male input in the process. It was found that most hybrids look exactly like purebred bison; therefore, appearance is not a good indicator of genetics.

A proposal known as Buffalo Commons has been suggested by a handful of academics and policymakers to restore large parts of the drier portion of the Great Plains to native prairie grazed by bison. Proponents argue that current agricultural use of the shortgrass prairie is not sustainable, pointing to periodic disasters, including the Dust Bowl, and continuing significant human population loss over the last 60 years. However, this plan is opposed by some who live in the areas in question.

Behavior and ecology

Bison are mostly grazers, with both male and female herds migrating in parallel with the seasons and annual grasses. Bison can eat most of the grass in an area in a short time and thus must keep migrating to feed more of the entire herd.

Social behavior and reproduction
Two adult female bison and a calf

Female bison live in maternal herds which include other females and their offspring. Male offspring leave their maternal herd when around three years old and will either live alone or join other males in bachelor herds. Male and female herds do not mingle until the breeding season.

During the breeding season, dominant bulls maintain a small harem of females for mating. Individual bulls "tend" cows until allowed to mate, by following them around and chasing away rival males. The tending bull will shield the female's vision with his body so she will not see any other challenging males. A challenging bull may bellow or roar to get a female's attention and the tending bull has to bellow/roar back.[18] The most dominant bulls mate in the first 2–3 weeks of the season.[18] More subordinate bulls will mate with any remaining estrous cow that has not mated yet. Male bison play no part in raising the young.

Bison herds have dominance hierarchies that exist for both males and females. A bison's dominance is related to its birth date.[19] Bison born earlier in the breeding season are more likely to be larger and more dominant as adults.[19] Thus bison are able to pass on their dominance to their offspring as dominant bison breed earlier in the season. In addition to dominance, the older bison of a generation also have a higher fertility rate than the younger ones.[19]
[edit] Wallowing behavior
A bison is taking a dust bath in a wallow in Yellowstone National Park.

A bison wallow is a shallow depression in the soil, which is used either wet or dry. Bison roll in these depressions, covering themselves with dust or mud. Past explanations and current hypotheses suggested for wallowing behavior include grooming behavior associated with shedding, male-male interaction (typically rutting behavior), social behavior for group cohesion, play behavior, relief from skin irritation due to biting insects; reduction of ectoparasite (tick and lice) load; and thermoregulation.[20]


In some areas, wolves are a major predator of bison. Wolf predation typically peaks in late spring and early summer, with attacks usually being concentrated on cows and calves. Observations have shown that wolves actively target herds with calves over ones with none.
An American Bison standing its ground against a wolf pack

The length of a predation episode varies, ranging from a few minutes to 11 hours. Bison display five apparent defense strategies in protecting calves from wolves: running to a cow, running to a herd, running to the nearest bull, running in the front or center of a stampeding herd, and entering water bodies such as lakes or rivers. When fleeing wolves in open areas, cows with young calves take the lead, while bulls take to the rear of the herds, to guard the cows' escape. Bison typically ignore wolves not displaying hunting behavior.[21] Wolf packs specializing in bison tend to have a greater number of males, as their superior size compared to the females allows them to wrestle their prey to the ground more effectively.[22] The grizzly bear can also pose a threat to calves and sometimes adult bison.


Native hunting

The American bison is a relative newcomer to North America, having originated in Eurasia and migrated over the Bering Strait.[23] About 10,000 years ago it replaced the steppe bison (Bison priscus), a previous immigrant that was much larger. It is thought that the long-horned bison[vague] became extinct due to a changing ecosystem and hunting pressure following the development of the Clovis point and related technology, and improved hunting skills. During this same period, other megafauna vanished and were replaced to some degree by immigrant Eurasian animals that were better adapted to predatory humans. The American bison, technically a dwarf form, was one of these animals.

Bison were a keystone species, whose grazing pressure was a force that shaped the ecology of the Great Plains as strongly as periodic prairie fires and which were central to the lifestyle of Native Americans of the Great Plains. However, there is now some controversy over their interaction. "Hernando De Soto's expedition staggered through the Southeast for four years in the early 16th century and saw hordes of people but apparently did not see a single bison," Charles C. Mann wrote in 1491: New Revelations of the Americas Before Columbus. Mann discussed the evidence that Native Americans not only created (by selective use of fire) the large grasslands that provided the bison's ideal habitat but also kept the bison population regulated. In this theory, it was only when the original human population was devastated by wave after wave of epidemic (from diseases of Europeans) after the 16th century that the bison herds propagated wildly. In such a view, the seas of bison herds that stretched to the horizon were a symptom of an ecology out of balance, only rendered possible by decades of heavier-than-average rainfall. Other evidence of the arrival circa 1550–1600 CE in the savannas of the eastern seaboard includes the lack of places which southeast natives named after buffalo.[24][25] Bison were the most numerous single species of large wild mammal on Earth.[26]
A bison hunt depicted by George Catlin.

What is not disputed is that before the introduction of horses, bison were herded into large chutes made of rocks and willow branches and then stampeded over cliffs. These buffalo jumps are found in several places in the U.S. and Canada, such as Head-Smashed-In Buffalo Jump. Large groups of people would herd the bison for several miles, forcing them into a stampede that would ultimately drive many animals over a cliff. The large quantities of meat obtained in this way provided the hunters with surplus, which was used in trade. A similar method of hunting was to drive the bison into natural corrals, such as the Ruby site.

To get the optimum use out of the bison, the Native Americans had a specific method of butchery, first identified at the Olsen-Chubbock archaeological site in Colorado. The method involves skinning down the back to get at the tender meat just beneath the surface, the area known as the "hatched area." After the removal of the hatched area, the front legs are cut off as well as the shoulder blades. Doing so exposes the hump meat (in the wood bison), as well as the meat of the ribs and the bison's inner organs. After everything was exposed, the spine was then severed and the pelvis and hind legs removed. Finally, the neck and head were removed as one. This allowed for the tough meat to be dried and made into pemmican.

Later, when Plains Indians obtained horses, it was found that a good horseman could easily lance or shoot enough bison to keep his tribe and family fed, as long as a herd was nearby. The bison provided meat, leather, sinew for bows, grease, dried dung for fires, and even the hooves could be boiled for glue. When times were bad, bison were consumed down to the last bit of marrow.

19th century bison hunts
A group of images by Eadweard Muybridge, set to motion to illustrate the animal's movement.

Bison were hunted almost to extinction in the late 19th century primarily by market hunters and were reduced to a few hundred by the mid-1880s. They were hunted for their skins, with the rest of the animal left behind to decay on the ground.[27] After the animals rotted, their bones were collected and shipped back east in large quantities.[27]

The US Army sanctioned and actively endorsed the wholesale slaughter of bison herds.[28] The US federal government promoted bison hunting for various reasons, to allow ranchers to range their cattle without competition from other bovines, and primarily to weaken the North American Indian population by removing their main food source and to pressure them onto the reservations.[29] Without the bison, native people of the plains were forced either to leave the land or starve to death.
As bison neared extinction, The Buffalo Hunt repeatedly served as a romanced subject for Charles Marion Russell: this example is from 1899 (Amon Carter Museum, Fort Worth)

According to historian Pekka Hämäläinen, Native Americans also contributed to the collapse of the bison.[30] By the 1830s the Comanche and their allies on the southern plains were killing about 280,000 bison a year, which was near the limit of sustainability for that region. Firearms and horses, along with a growing export market for buffalo robes and bison meat had resulted in larger and larger numbers of bison killed each year by the white and half breed market hunters. A long and intense drought hit the southern plains in 1845, lasting into the 1860s, which caused a widespread collapse of the bison herds.[30] In the 1860s, the rains returned and the bison herds recovered to a degree.

The railroad industry also wanted bison herds culled or eliminated. Herds of bison on tracks could damage locomotives when the trains failed to stop in time. Herds often took shelter in the artificial cuts formed by the grade of the track winding through hills and mountains in harsh winter conditions. As a result, bison herds could delay a train for days.
A pile of bison skulls in the 1870s.

The main or primary reason for the bison's near-demise, much like the actual demise of the passenger pigeon, was commercial market hunting.

Bison skins were used for clothing such as robes, rugs and, most importantly, for industrial machine belts. Prior to electrification factories were usually powered by a centrally located steam engine, with the power carried throughout the factory using an arrangement known as line shaft transmission. Power from the engine was transferred to rods suspended below the ceiling on each floor of the factory, where it was in turn transferred to individual machines on the floor via a leather belt running on two pulleys, one on the rod and the other on the machine. Buffalo leather was the material of choice for this application because of its strength and wear resistance.

There was a huge export trade to Europe of bison hides. Old West bison hunting by white people was very often a big commercial enterprise, involving organized teams of one or two professional market hunters, backed by a team of skinners, gun cleaners, cartridge reloaders, cooks, wranglers, blacksmiths, security guards, teamsters, and numerous horses and wagons. Men were even employed to recover and recast lead bullets taken from the carcasses. Many of these professional [market hunters], such as Buffalo Bill Cody, killed over a hundred animals at a single stand and many thousands in their career. One professional market hunter killed over 20,000 buffalo by his own count. A good hide could bring $3 in Dodge City, Kansas, and a very good one (the heavy winter coat) could sell for $50 in an era when a laborer would be lucky to make a dollar a day.

The market hunter would customarily locate the herd in the early morning, and station himself about 100 metres (109 yd) from it, shooting the animals broadside through the lungs. Head shots were not preferred as the soft lead bullets would often flatten and fail to penetrate the skull, especially if mud was matted on the head of the animal. The bison would drop until either the herd sensed danger and stampeded or perhaps a wounded animal attacked another, causing the herd to disperse. If done properly, a large number of bison would be felled at one time. Following up were the skinners, who would drive a spike through the nose of each dead animal with a sledgehammer, hook up a horse team, and pull the hide from the carcass. The hides were dressed, prepared, and stacked on the wagons by other members of the organization.
A bull bison, illustrated in The Extermination of the American Bison. Used on the obverse of the 1901 American Bison $10 bill.

For a decade from 1873 on, there were several hundred, perhaps over a thousand, such commercial hide/market hunting outfits harvesting bison at any one time, vastly exceeding the take by American Indians or individual meat hunters. The commercial take arguably was anywhere from 2,000 to 100,000 animals per day depending on the season, though there are no statistics available. It was said that the Big .50s were fired so much that the market hunters needed at least two rifles to let the barrels cool off; The Fireside Book of Guns reports they were sometimes quenched in the winter snow. Dodge City saw railroad cars sent East filled with stacked hides.

The building of the railroads through Colorado and Kansas split the bison herd in two parts, the southern herd and the northern herd. The last refuge of the southern herd was in the Texas Panhandle.[31]

As the great herds began to wane, proposals to protect the bison were discussed. Cody, among others, spoke in favor of protecting the bison because he saw that the pressure on the species was too great. Yet these proposals were discouraged since it was recognized that the Plains Indians, often at war with the United States, depended on bison for their way of life. In 1874, President Ulysses S. Grant "pocket vetoed" a Federal bill to protect the dwindling bison herds, and in 1875, General Philip Sheridan pleaded to a joint session of Congress to slaughter the herds, to deprive the Indians of their source of food.[32] By 1884, the American bison was close to extinction.

A group of bison at a watering hole.

The famous herd of James "Scotty" Philip in South Dakota was one of the earliest reintroductions of bison to North America. In 1899, Phillip purchased a small herd (five of them, including the female) from Dug Carlin, Pete Dupree's brother-in-law, whose son Fred had roped five calves in the Last Big Buffalo Hunt on the Grand River in 1881 and taken them back home to the ranch on the Cheyenne River. Scotty's goal was to preserve the animal from extinction. At the time of his death in 1911 at 53, Philip had grown the herd to an estimated 1,000 to 1,200 head of bison. A variety of privately owned herds had also been established, starting from this population.

Simultaneously, two Montana ranchers, Michel Pablo and Charles Allard, spent more than 20 years assembling one of the largest collections of purebred bison on the continent (by the time of Allard's death in 1896, the herd numbered 300). In 1907, after U.S. authorities declined to buy the herd, Pablo struck a deal with the Canadian government and shipped most of his bison northward to the newly created Elk Island National Park.[32][33] Also, in 1907, the New York Zoological Park sent 15 bison to Wichita Mountains Wildlife Refuge in Oklahoma forming the nucleus of a herd that now numbers 650.[34]

An isolated bison herd on Utah's Antelope Island has also been used to improve the genetic diversity of American bison. The current American bison population has been growing rapidly, and is estimated at 350,000, compared to an estimated 60 to 100 million in the mid-19th century. Most current herds, however are genetically polluted or partly crossbred with cattle.[35][36][37][38] Today there are only four genetically unmixed herds and only one that is also free of brucellosis: it roams Wind Cave National Park. A founder population of 16 animals from the Wind Cave herd was established in Montana in 2005 by the American Prairie Foundation. The herd now numbers near 100 and roams a 14,000-acre (57 km2) grassland expanse on American Prairie Reserve.
Bison graze near a hot spring in Yellowstone National Park.

One of the largest privately owned herds, numbering 2,500, in the US is on the Tallgrass Prairie Preserve in Oklahoma which is owned by the Nature Conservancy. Ted Turner is the largest private owner of Bison with about 50,000 on several different ranches.[39]

The only continuously wild bison herd in the United States resides within Yellowstone National Park. Numbering between 3,000 and 3,500, this herd is descended from a remnant population of 23 individual mountain bison that survived the mass slaughter of the 1800s by hiding out in the Pelican Valley of Yellowstone Park. In 1902, a captive herd of 21 plains bison was introduced to the Lamar Valley and managed as livestock until the 1960s, when a policy of natural regulation was adopted by the park.

The end of the ranching era and the onset of the natural regulation era set into motion a chain of events that have led to the bison of Yellowstone Park migrating to lower elevations outside the park in search of winter forage. The presence of wild bison in Montana is perceived as a threat to many cattle ranchers, who fear that the small percentage of bison that carry brucellosis will infect livestock and cause cows to abort their first calves. However, there has never been a documented case of brucellosis being transmitted to cattle from wild bison. The management controversy that began in the early 1980s continues to this day, with advocacy groups arguing that the Yellowstone herd should be protected as a distinct population segment under the Endangered Species Act.

Bison hunting today
Bison grazing on a wildlife ranch in Texas.
Adolescent Bison in Yellowstone National Park.

Hunting of wild bison is legal in some states and provinces where public herds require culling to maintain a target population. In Alberta, where one of only two continuously wild herds of bison exist in North America at Wood Buffalo National Park, bison are hunted to protect disease-free public (reintroduced) and private herds of bison.

In Montana, a public hunt was reestablished in 2005, with 50 permits being issued. The Montana Fish, Wildlife, and Parks Commission increased the number of tags to 140 for the 2006/2007 season. Advocacy groups claim that it is premature to reestablish the hunt, given the bison's lack of habitat and wildlife status in Montana.

Bison were also reintroduced to Alaska in 1928, and both domestic and wild herds subsist in a few parts of the state.[40][41] The state grants limited permits to hunt wild bison each year.[42][43]

The bison is one of the few North American large game animals that can be hunted year round, though hunters prefer to hunt it at certain times of the year to achieve desired appearances of the coat.

In 2002 the United States government donated some buffalo calfs offspring to reintroduce the Mexican government to its wildlife, these specimens were from South Dakota and Colorado, the reintroduction of the American buffalo in the Mexican nature reserves El Uno Ranch at Janos and Santa Helena Canyon, Chihuahua, and Boquillas del Carmen, Coahuila, is located in the southern shores of the Rio Grande and the grasslands borderline with Texas and New Mexico.[44]
Range history of bison in North America
Original distribution of plains bison and wood bison in North America. Holocene bison (Bison occidentalis) is an earlier form at the origin of plains bison and wood bison.
Holocene bison
Wood bison
Plains bison

Map of the extermination of the bison to 1889. This map based on William Temple Hornaday's late-nineteenth-century research.
Original range
Range as of 1870
Range as of 1889

Distribution of public herds of plains bison and of free-ranging or captive breeding wood bison in North America as of 2003.
Wood bison
Plains bison

Bison trails

The first thoroughfares of North America, except for the time-obliterated paths of mastodon or muskox and the routes of the Mound Builders, were the traces made by bison and deer in seasonal migration and between feeding grounds and salt licks. Many of these routes, hammered by countless hoofs instinctively following watersheds and the crests of ridges in avoidance of lower places' summer muck and winter snowdrifts, were followed by the Indians as courses to hunting grounds and as warriors' paths. They were invaluable to explorers and were adopted by pioneers.

Bison traces were characteristically north and south, but several key east-west trails were used later as railways. Some of these include the Cumberland Gap through the Blue Ridge Mountains to upper Kentucky. A heavily used trace crossed the Ohio River at the Falls of the Ohio and ran west, crossing the Wabash River near Vincennes, Indiana. In Senator Thomas Hart Benton's phrase saluting these sagacious path-makers, the bison paved the way for the railroads to the Pacific.[45] [46]

Bison as a symbol
Wyoming uses a bison in its state flag.
The 1935 Buffalo nickel – this style of coin featuring an American bison was produced from 1913 to 1938.
2005 Nickel, Obverse
2005 Nickel, Reverse
The 2005 Nickel featured an American bison, reminiscent of the older buffalo nickel design.
2006 American Buffalo Proof Obverse
2006 American Buffalo Proof Reverse
The American Buffalo, also known as a gold buffalo, is a 24-karat gold bullion coin first issued in 2006 and designed after the Indian Head nickel.
American Bison on the obverse of the 1901 $10 bill.

The American bison is often used in North America in official seals, flags, and logos. In the United States, the American bison is a popular symbol in the Great Plains states. Kansas, Oklahoma, and Wyoming have adopted the animal as their official state mammal, and many sports teams have chosen the bison as their mascot. In Canada, the bison is the official animal of the province of Manitoba and appears on the Manitoba flag. It is also used in the official coat of arms of the Royal Canadian Mounted Police.

Several American coins feature the bison, most famously on the reverse side of the "buffalo nickel" from 1913 to 1938. In 2005, the United States Mint coined a nickel with a new depiction of the bison as part of its "Westward Journey" series. The Kansas and North Dakota state quarters, part of the "50 State Quarter" series, each feature bison. The Kansas state quarter has only the bison and does not feature any writing, while the North Dakota state quarter has two bison.

Other institutions which have adopted the bison as a symbol or mascot include:

* Bucknell University
* Buffalo, New York
* Buffalo Bills
* Buffalo Bisons
* Buffalo Bulls
* Buffalo Grove High School
* Buffalo Sabres
* University at Buffalo, The State University of New York
* University of Colorado
* Gallaudet University
* Seal of the State of Indiana
* Harding University
* Howard University
* Lipscomb University
* Flag of Manitoba
* University of Manitoba
* Marshall University
* Independence Party of Minnesota
* Ralph Nader (mascot for his 2008 campaign for president)[47]
* Nichols College
* North Dakota State University
* Oklahoma Baptist University
* Royal Canadian Mounted Police
* Southwestern Law School
* CFB Wainwright
* West Texas A&M University
* The Regional Municipality of Wood Buffalo, Alberta
* Tooele High School [Tooele, UT]

First postage stamp with image of bison was issued US in 1898 - 4c "Indian Hunting Buffalo". Part of the Trans-Mississippi Exposition commemorative series.

Bison can leap a standard 36 inch barbed-wire fence with ease, as seen here near Lake George, Colorado.

Bison are among the most dangerous animals encountered by visitors to the various U.S. and Canadian national parks, and will attack humans if provoked. They appear slow because of their lethargic movements but can easily outrun humans—they have been observed running as fast as 35 miles per hour (56 km/h) . Between 1978 and 1992, nearly five times as many people in Yellowstone National Park were killed or injured by bison as by bears (12 by bears, 56 by bison). Bison are also more agile than one might expect, given their size and body structure.


1. ^ Gates, C. & Aune, K (2008). Bison bison. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 10 November 2008.Database entry includes a brief justification of why this species is of Near threatened.
2. ^ http://www.discoverlife.org/nh/tx/Vertebrata/Mammalia/Bovidae/Bos/bison/images/Bison_bison_map.320.jpg.html
3. ^ Geist V. (1991). "Phantom subspecies: the wood bison, Bison bison "athabascae" Rhoads 1897, is not a valid taxon, but an ecotype.". Arctic 44 (4): 283–300.
4. ^ Kay, Charles E.; Clifford A. White (2001). "Reintroduction of bison into the Rocky Mountain parks of Canada: historical and archaeological evidence". Crossing Boundaries in Park Management: Proceedings of the 11th Conference on Research and Resource Management in Parks and on Public Lands. Hancock, Michigan: The George Wright Society, Inc.. pp. 143–51. http://www.georgewright.org/24kay.pdf. Retrieved December 2, 2009.
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Further reading

* Branch, E. Douglas. The Hunting of the Buffalo (1929, new ed. University of Nebraska Press, 1997), classic history online edition
* Barsness, Larry. Heads, Hides and Horns: The Compleat Buffalo Book. (Texas Christian University Press, 1974)
* Dary David A. The Buffalo Book. (Chicago: Swallow Press, 1974)
* Fagan, Brian. Ancient North America. 2005. Thames and Hudson
* Flores, Dan Louie. "Bison Ecology and Bison Diplomacy: The Southern Plains from 1800 to 1850." Journal of American History 78 (1991): 465-85. in JSTOR
* Gard, Wayne. The Great Buffalo Hunt (University of Nebraska Press, 1954)
* Isenberg, Andrew C. The Destruction of the Buffalo: An Environmental History, 1750-1920 (Cambridge University press, 2000) online edition
* Koller, Larry. Fireside Book of Guns. 1959 Simon and Schuster
* McHugh, Tom. The Time of the Buffalo (University of Nebraska Press, 1972).
* Meagher, Margaret Mary. The Bison of Yellowstone National Park. (Washington DC: Government Printing Office, 1973)
* Rister, Carl Coke. "The Significance of the Destruction of the Buffalo in the Southwest." Southwestern Historical Quarterly 33 (1929): 34-49.
* Roe, Frank Gilbert. The North American Buffalo: A Critical Study of the Species in Its Wild State (University of Toronto Press, 1951).
* Shaw, James H. "How Many Bison Originally Populated Western Rangelands?" Rangelands, Vol. 17, No. 5 (Oct., 1995), pp. 148–150 in JSTOR
* Smits, David D. "The Frontier Army and the Destruction of the Buffalo, 1865-1883," Western Historical Quarterly 25 (1994): 313-38 and 26 (1995) 203-8.
* Zontek, Ken. "Hunt, Capture, Raise, Increase: The People Who Saved the Bison." Great Plains Quarterly 15 (1995): 133-49.

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