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Canadian Black Bear - School Essays

Canadian Black Bear

The There are 8 kinds of bears (Ursus) in the world but I chose the North American Black bear (Ursus americanus). I will be covering general information about the bear such as their size, weight, color, food, etc., but I will concentrate mainly on the hibernating cycle of the black bear. There are from 400,000 to 750,00 black bears in North America, and they weigh from 130 to 660 pounds with a body length of 50 to 75 inches. Their colors vary from black, chocolate brown, cinnamon brown, pale blue (known as glacier bears) to white. Black bears will often have a brown muzzle and may have a lighter color patch on its chest. Its feet are equipped with strong, highly curved claws. They’re ...

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their parts illegally to the Asian medicinal market. In northern areas of Canada, the bear undergoes a remarkable metabolic transformation as it prepares for hibernation. Hibernation is an energy-saving process bears have developed to let them survive for long periods when there is insufficient food available to maintain their body mass. When they stop eating and become increasingly lethargic, the bear will enter a cave; dig out a den; or hole up in a dense brush pile, hollow log or tree cavity and hibernate. Right before it does this it starts to gain weight so it can survive the long months ahead. It can gain as much as 30 pounds per week. The bear hibernates between four to seven months. When it’s in a hibernating state the bear’s heart rate drops from between forty to seventy beats per minute to only eight to twelve beats per minute. Its metabolism slows down by half, and its body temperature reduces by 3 to 7 degrees Centigrade (5 to 9 degrees Fahrenheit). Also its body ...

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PAPER DETAILS

Added: 3/9/2005 08:26:57 AM
Category: Science & Nature
Type: Free Paper
Words: 514
Pages: 2

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