Reports

Nikolaevsk Elementary/High School

The Grizzly Bear

Common Name:
Grizzly Bear

Describe The Animal:

The male grizzly bear is about seven feet tall and weighs about 300-600 pounds. The female is slightly smaller weighing 200-400 pounds. They have thick fur, rounded ears and high, humped shoulders.

Scientific Name:

Their scientific name is Ursus arctos horribillis. Their status as of 1975 was endangered.

Animal Status:

They were listed as endangered in 1975.

Habitat range:

The females need 50-300 square miles of home range and the males need 200-500 square miles of home range. Its historic range went from central Mexico to Canada and Alaska and from the mid-plains westward all the way to California.

Habitat location:

They live in Idaho, Washington, Montana, Wyoming, Alaska and Canada.

Number known to exist:

The number of bears known to exist is 52,525 bears in the U.S.

Average life span:

Their average life span is 15-20 years.

Primary and secondary food:

Their primary food sources are vegetation like wild fruits, berries, nuts,   and bulbs or roots of certain plants. Their secondary food sources are salmon, insects, elk and moose.

Reproduction:

They mate 6 months before they have their babies and they have 1-2 cubs usually but sometimes they have 3 cubs. The babies weigh only a pound or less. The females only breed once every three years.

Threatens of life:

The threatens of life are: people, recreational development, road building, energy and mineral exploration and the valleys which are the grizzly’s corridors when they travel from one place to another to find food.

Unusual Facts:

Bears do not have an opposable "thumb," so they can’t grasp an object with a single paw, as humans can grasp objects between the thumb and fingers. Another unusual fact is the grizzly bear recovery effort that has been a great success. The grizzly bears in Yellowstone have reached their full recovery target, and those in the North Continental Divide ecosystem have nearly reached their recovery target and are expected to reach them next year.

Nederlandse vertaling volgt spoedig.

Written by (geschreven door): Robert.

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Copyright August 1997 - Joan Goble and René de Vries

Last modified: June 8, 1998