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Facts about Polar Bears and what would happen if they went extint

By Jaqulen and Zubair

zubair sidhu

on 6 November 2012

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Transcript of Facts about Polar Bears and what would happen if they went extint

By: Zubair and Jacquelyn Facts about Polar Bears
And what would happen if they went extinct Facts about Polar Bears What would Happen if Polar Bears were to extinct? Habitat of Polar Bears Polar bears live in the Arctic Circle (North Pole).
Polar bears need to adapt to the extreme cold weathers with a thick layer of fat and fur. Polar bears have small bumbs on their feet to help them get a grip on the ice.
The extreme cold climate helps then survive because without it, their fur will heat them from the inside. the cold weather only lets a few animals survive including polar bears. Polar bears tend to travel to areas where sea ice meets natural water. If polar bears were to go extinct, the population of walruses, seals, whales, reindeer, rodents and birds would increase and get out of control. The Arctic Circle does not have much vegetation to start with so if their are no predators to decrease the population, the vegetation would go to zero, killing the other herbivores or forcing them to move habitats. Since seals create breathing holes, in about 100 to 200 years this will break up the ice and split the arctic circle. Polar Bears (it scientific name is Ursus maritimus) live mostly in the Arctic Circle and in the land surrounding areas. A male polar bears weighs between 350–680 kg, a female polar bear weighs about half the weight of a male bear. Diet and What Polar bears eat. Polar bears are omnivores and may sometimes scavenge when they are desperate. Most of their meal comes from ringed and bearded seals.
Their diet consists of seals, walruses, beluga whales, fish, eggs, birds, rodents and sometimes vegetables such as kelp, roots, and berries.
They have certain methods of hunting such as standing a few meters away from a seal breathing hole.
They kill the seal by biting the head which crushes the skull, killing the seal. What is the Ecological niche of a Polar Bear. A polar bear's role in the arctic circle is to decrease and maintain the population of seals. (this is their main meal) They are omnivores so therefore eat a variety of animals and a limited amount of vegetables. Polar bears rarely enter in a conflict with other predators such as brown bears, since their habitats are so far apart.
Polar bears are the main predators of the north pole. What is killing the Polar bears and what can we do to prevent the extinction of the Polar Bears? Global warming melt's the ice and due to to the thick layer of fat the polar has, they need cold environments to survive. Oil spills pollute the water and since polar bears need water to survive they start to die off because they cannot catch seals. U.S. surveys predict that in 2050, two-thirds of the population will die.

To prevent extinction of polar bears we can lay down hunting restrictions and prevent tourists from stepping on to polar bear habitats. We could reduce our use of oil. The End!
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