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Plains bison are often in the smaller range of sizes, and wood bison in the larger range. Head-rump lengths at maximum up to 3.5 m (11 ft 6 in) for males and 2.85 m (9 ft 4 in) for females long and the tail adding 30 to 95 cm (1 ft 0 in to 3 ft 1 in).
English: Original distribution of plains bison (Bison bison bison) and wood bison (Bison bison athabascae) in North America, based on available zooarchaeological, paleontological, oral and written historical accounts. Holocene bison (Bison occidentalis) is an earlier form at the origin of B. b. bison and B. b. athabascae.
Bison herd grazing at the CSKT Bison Range. The environment of the great bison belt has been defined by low rainfall, typically less than 24 in (610 mm) per year. In drier areas, annual rainfall was less than 16 in (410 mm). [4] The area has also been unstable and unpredictable. Periods of drought could quickly be replaced by excessive rainfall ...
The CSKT Bison Range (BR) is a nature reserve on the Flathead Indian Reservation in western Montana established for the conservation of American bison. Formerly called the National Bison Range, the size of the bison herd at the BR is 350 adult bison and welcomes 50–60 calves per year.
The wood bison is potentially more primitive in phenotype than the plains bison (Bison bison bison), while the latter probably evolved from a mixing of Bison occidentalis and Bison antiquus. [15] It is unclear whether today's animals preserve the original phenotypes existing prior to the 1920s. [15]
A bison (pl.: bison) is a large bovine in the genus Bison (Greek: "wild ox" (bison) [1]) within the tribe Bovini. Two extant and numerous extinct species are recognised. Of the two surviving species, the American bison , B. bison , found only in North America , is the more numerous.
President Theodore Roosevelt established The National Bison Range in 1908 for the conservation of bison. [2] [3] The original herd was released into the park in 1909 after being purchased by the American Bison Society and subsequently donated to the refuge. [2] [4] It consisted of 40 bison.
The European bison (pl.: bison) (Bison bonasus) or the European wood bison, also known as the wisent [a] (/ ˈ v iː z ə n t / or / ˈ w iː z ə n t /), the zubr [b] (/ ˈ z uː b ə r /), or sometimes colloquially as the European buffalo, [c] is a European species of bison. It is one of two extant species of bison, alongside the American bison.