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The Life Cycle of an American Bison

The American Bison

The American Bison is the largest land animal in North America. Males are 6 feet tall and can weigh between 450kg and 900kg. Females are 5 feet tall and can weigh between 350kg and 450kg. Bison's have big heads with short black horns and a hump on their shoulder. They have long shaggy brown fur, a mane, a beard under their chin and a long tail with fur at the end.

Death

Reproduction

Growth

Birth

At about two months the calf will begin to develop shoulder humps and horns. The calf is usually weened by the time it is 7 months old.

During the 19th century Bison Hunting was a big sport in America. The American Bison neared extinction but was saved when the government announced them as a endangered animal and weren't allowed to be hunted.

After about nine months the female will go to an isolated area to give birth to one calf. Newborn bison can stand shortly after birth and are reddish brown in color. The mother and her calf will stay away from the herd for a couple of days.

Female Bison's are ready to mate between two and three years old while males aren't ready to mate until they are six. When mating season begins males move into female groups where they select a female and tend them. Males tend a female by staying between her and the rest of the herd. Tending can last for a few minutes or several days. If a female isn't interested in a male she will walk away. Males will threaten and sometimes attack other males if they get to close to their female.

Bibliography

  • www.gettyimages.com
  • www.nhptv.org/natureworks/americanbison.htm
  • www.dailymail.co.uk
  • https://en.wikipedia.org/wiki/Bison_hunting
  • https://en.wikipedia.org/wiki/Bison
  • www.huffingtonpost.com
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