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A bison calf resting with its mother. Female bison ("cows") typically reproduce after three years of age [50] and can continue beyond 19 years of age. [51] Cows produce calves annually as long as their nutrition is sufficient, but not after years when weight gain is low. Reproduction is dependent on a cow's mass and age. [51]
The Texas State Bison Herd is also a useful example of the deleterious effects of extreme population bottlenecking, with an average natality rate of 0.376 offspring per female and a 1st-year mortality rate of 52.6% from 1997 to 2002, compared to an average natality rate of 0.560 offspring per female and a 1st-year mortality rate of 4.2% for the ...
While commonly referred to as a buffalo, Ralphie is actually an American bison. [2] Due to their smaller size, reduced strength, and less-aggressive temperament, female bison have always been chosen as Ralphie as opposed to males. [3] She can reach speeds of 25 miles per hour, and it traditionally takes five handlers to guide her around the field.
This man was clearly old enough to know better. ... That's not surprising since female bison weigh about 1,000 pounds and males can weigh up to 2,000. ... Giant bluefin tuna the size of a ...
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.
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Resembling the modern bison species, especially the American wood bison (Bison bison athabascae), [9] the steppe bison was over 2 m (6 ft 7 in) tall at the withers, reaching 900 kg (2,000 lb) in weight. [10] The tips of the horns were a meter apart, the horns themselves being over half a meter long.