Bison bison athabascae

Just an excerpt from a report I wrote:

“According to Environment and Climate Change Canada, wood bison are the largest terrestrial native mammal in North America. Prominent sexual dimorphism occurs, with males reaching up to two meters high at the withers and weighing up to one tonne (in comparison, a draft horse like a clydesdale is only 1.7m at the withers on average). Shaggy hair encompasses their head and neck, longer and darker than on the rest of their body. Males have what amounts to beard (long hairs dangling from the lower jaw and head), and possess short, thick, black horns that end in an a decidedly bovine, upward curve. Females possess thinner, more curved horns. In both sexes, sharp hooves serve as defense against predators. Wood bison are very tolerant of cold weather, with their metabolic rate decreasing in temperatures around -30°C (Gov. B.C, 2002). Instead of digging for forage in deeper snows, like most ungulates, bison will use their large neck and shoulders to sweep the snow away.”

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