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  2. Polar ecology - Wikipedia

    en.wikipedia.org/wiki/Polar_ecology

    Polar ecology is the relationship between plants and animals in a polar environment. Polar environments are in the Arctic and Antarctic regions. Arctic regions are in the Northern Hemisphere, and it contains land and the islands that surrounds it. Antarctica is in the Southern Hemisphere and it also contains the land mass, surrounding islands ...

  3. Polar regions of Earth - Wikipedia

    en.wikipedia.org/wiki/Polar_regions_of_Earth

    The polar regions, also called the frigid zones or polar zones, of Earth are Earth's polar ice caps, the regions of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles. These high latitudes are dominated by floating sea ice covering much of the Arctic Ocean in the north, and by the ...

  4. Marine mammal - Wikipedia

    en.wikipedia.org/wiki/Marine_mammal

    Marine mammals are mammals that rely on marine (saltwater) ecosystems for their existence. They include animals such as cetaceans (whales, dolphins and porpoises), pinnipeds (seals, sea lions and walruses), sirenians (manatees and dugongs), sea otters and polar bears. They are an informal group, unified only by their reliance on marine ...

  5. Allen's rule - Wikipedia

    en.wikipedia.org/wiki/Allen's_rule

    Allen's rule is an ecogeographical rule formulated by Joel Asaph Allen in 1877, [2][3] broadly stating that animals adapted to cold climates have shorter and thicker limbs and bodily appendages than animals adapted to warm climates. More specifically, it states that the body surface-area-to-volume ratio for homeothermic animals varies with the ...

  6. Polar bear - Wikipedia

    en.wikipedia.org/wiki/Polar_bear

    The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed. The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb). The species is sexually dimorphic, as adult females ...

  7. Polar seas - Wikipedia

    en.wikipedia.org/wiki/Polar_seas

    Polar seas is a collective term for the Arctic Ocean (about 4-5 percent of Earth's oceans) and the southern part of the Southern Ocean (south of Antarctic Convergence, about 10 percent of Earth's oceans). In the coldest years, sea ice can cover around 13 percent of the Earth's total surface at its maximum, but out of phase in the two hemispheres.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Sathyamangalam Tiger Reserve - Wikipedia

    en.wikipedia.org/wiki/Sathyamangalam_Tiger_Reserve

    Sathyamangalam Forest Division in Nilgiri Biosphere Reserve. The total area originally declared as a sanctuary was 524.3494 km 2 (202.4524 sq mi). The boundaries of the sanctuary were the Thalavadi range of Thalamalai forests and Hasanur, T.N.Palayam ranges of Gobichettipalayam taluk of Guthiyalathur forests, contiguous with Billigiriranga Swamy Temple Wildlife Sanctuary in the north and the ...