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Polar Bears Return To Pacific Arctic Ice For The First Time In 20 Years – Free PDF Download

  • The ice caps are melting thereby raising sea levels and affecting local habitat. But a positive news has come from the Pacific Arctic. Scientists have reported cooling for the first time in this region.

  • Polar bears are found in the Arctic circle on the ice-covered waters. These marine mammals are at the top of the food chain and have an important role in the overall health of the marine environment.
  • Due to global warming, the Arctic ice caps were melting, raising sea levels and threatening their habitat.
  • But recently the scientists have reported cooling for the first time in the Arctic region which has translated to more retention of ice resulting in the return of polar bears.
  • When there is no ice, polar bears cannot hunt for seals. Retention of ice has meant that seals reappeared and polar bear got their preferred food, Polar bears prefer to hunt seals than walruses. However, if ice recedes, polar bears are forced to hunt for seals.
  • Polar bear is an endangered animal and cooling of Pacific Arctic region is surely is good sign.

About Polar Bear

  • The largest bear in the world and the Arctic’s top predator, polar bears are a powerful symbol of the strength and endurance of the Arctic. The polar bear’s Latin name, Ursus maritimus, means “sea bear”.

  • It’s an apt name for this majestic species, which spends much of its life in, around, or on the ocean–predominantly on the sea ice. In the United States, Alaska is home to two polar bear subpopulations.
  • Considered talented swimmers, polar bears can sustain a pace of six miles per hour by paddling with their front paws and holding their hind legs flat like a rudder.
  • They have a thick layer of body fat and a water-repellent coat that insulates them from the cold air and water.
  • Polar bears spend over 50% of their time hunting for food.
  • A polar bear might catch only one or two out of 10 seals it hunts, depending on the time of year and other variables.
  • Their diet mainly consists of ringed and bearded seals because they need large amounts of fat to survive.
  • The survival and the protection of the polar bear habitat are urgent issues for WWF. In October 2019, the International Union for the Conservation of Nature (IUCN) Polar Bear Specialist Group released a new assessment of polar bear populations showing that the number of polar bear subpopulations experience recent declines has increased to four, with eight populations still being data-deficient.

About Arctic Region

  • The Arctic is the northernmost region of Earth.
  • Most scientists define the Arctic as the area within the Arctic Circle, a line of latitude about 66.5° north of the Equator.
  • Within this circle are the Arctic ocean basin and the northern parts of Scandinavia, Russia, Canada, Greenland, and the U.S. state of Alaska.

Question:

Female polar bears give birth during

(a) spring

(b) summer

(c) autumn

(d) winter

 

 

 

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