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Global Warming Affecting Polar Bears Essay

  • Submitted by: pork
  • on March 17, 2012
  • Category: Miscellaneous
  • Length: 732 words

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Below is an essay on "Global Warming Affecting Polar Bears" from Anti Essays, your source for research papers, essays, and term paper examples.

Polar bears

Polar bears (Ursus Maritimus), apart from being found in zoos, polar bears are omnivorous mammals native to only the Arctic Circle. The polar bear is the largest terrestrial carnivore, being more than twice the size of a Siberian tiger. Adult males weigh 350–680 kg (770–1500 lbs) and measure 2.4–3 m (7.9–9.8 ft) in length. Adult females are roughly half the size of males and normally weigh 150–249 kg (330–550 lb), measuring 1.8–2.4 metres (5.9–7.9 ft) in length. When pregnant, however, they can weigh as much as 499 kg (1,100 lb). The pads of the paws are covered with small, soft papillae (dermal bumps) which provide traction on the ice. The polar bear's claws are short and stocky. Polar bears spend their entire life associated with ice. Females may prefer ice along the shoreline while others prefer moving sea ice at the floe edge. They eat mostly ringed and bearded seals. They will occasionally eat other mammals, eggs, vegetation and beach-cast carrion water therefore making them omnivores. Polar bears don't drink water. They get all the liquids that they need from the animals that they eat. Polar bears are mostly solitary mammals except for female-cub groups, during mating season, and at abundant food sources.

Cause
In the past polar bears were hunted for their fur and meat. This caused a great decrease in the polar bear’s population. Since then many countries made up laws that helped these creatures from being extinct. Like the Marine Mammal Protection Act of 1972. It prohibited any body from hunting, killing, or harassing any species of marine mammals. The animals protected by this law include: dolphins, whales, seals, sea lions, polar bears, dugongs, and walruses. Global warming is another thing causing polar bears to die. Polar bears are loosing sea ice habitat because the ice is melting, since polar bears live and survive on Arctic ice, thus making global warming a serious threat to them.

Problem
Polar bear populations are dropping due...

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MLA Citation

"Global Warming Affecting Polar Bears". Anti Essays. 17 Dec. 2018

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APA Citation

Global Warming Affecting Polar Bears. Anti Essays. Retrieved December 17, 2018, from the World Wide Web: http://parimatchstavki7.com/free-essays/Global-Warming-Affecting-Polar-Bears-186663.html