Results 201 to 210 of about 19,222 (246)
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Science, 2010
Evolution![Figure][1] CREDIT: OYSTEIN WIIG, UNIVERSITY OF OSLO Polar bears are adapted to living in one of the harshest environments on earth, their range being determined by the extent of Arctic polar sea ice. They arose from the brown bear lineage and are most closely related to a group of genetically distinct brown bears that inhabit the ...
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Evolution![Figure][1] CREDIT: OYSTEIN WIIG, UNIVERSITY OF OSLO Polar bears are adapted to living in one of the harshest environments on earth, their range being determined by the extent of Arctic polar sea ice. They arose from the brown bear lineage and are most closely related to a group of genetically distinct brown bears that inhabit the ...
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Science, 2005
Nunavut, Canada, has increased the harvest quota for the 12 subpopulations of polar bears found within the territory from 403 in 2004 to 518 in 2005 partly based on the perception by Inuit (not supported by scientific data) that some subpopulations have been increasing under the historical ...
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Nunavut, Canada, has increased the harvest quota for the 12 subpopulations of polar bears found within the territory from 403 in 2004 to 518 in 2005 partly based on the perception by Inuit (not supported by scientific data) that some subpopulations have been increasing under the historical ...
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A polar bear paleogenome reveals extensive ancient gene flow from polar bears into brown bears
Nature Ecology & Evolution, 2022Polar bears (Ursus maritimus) and brown bears (Ursus arctos) are sister species possessing distinct physiological and behavioural adaptations that evolved over the last 500,000 years. However, comparative and population genomics analyses have revealed that several extant and extinct brown bear populations have relatively recent polar bear ancestry ...
Ming-Shan Wang +14 more
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Science, 2022
Can the international conservation agreement protect these bears?
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Can the international conservation agreement protect these bears?
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The greening of polar bears in zoos
Nature, 1979POLAR BEARS (Thalarctos maritimus) normally have creamy-white fur, presumably an adaptation for camouflage in a snowy environment. However, during the summer of 1978, the fur on the back and sides of three adults in the San Diego Zoo turned green, though the animals remained otherwise healthy. (Of these bears, one female was born in the zoo in Calgary,
R A, Lewin, P T, Robinson
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ACM SIGGRAPH 2003 video review on Electronic theater program on Electronic theater program - Volume 144, 2003
Captive polar bears Gary and his son Shane are playing football with an old tin. Just as mum Claudia warns Shane not to fall, Gary falls in the recently emptied pool instead. He ends up with both arms sticking out sideways in plaster, prompting the other polar bears to tease him relentlessly.
Pierre Coffin, Hugo Sands, Erika Forzy
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Captive polar bears Gary and his son Shane are playing football with an old tin. Just as mum Claudia warns Shane not to fall, Gary falls in the recently emptied pool instead. He ends up with both arms sticking out sideways in plaster, prompting the other polar bears to tease him relentlessly.
Pierre Coffin, Hugo Sands, Erika Forzy
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Dermatophilosis in Two Polar Bears
Journal of the American Veterinary Medical Association, 1975SUMMARY Dermatophilosis was diagnosed in 2 of 13 captive polar bears (Thalarctos maritimus), causing generalized dermatitis of 3 years' and 6 months' duration, respectively. Progressive clinical signs included yellowing and darkening of the hair, pruritus, encrustation of skin, and reluctance to bathe.
M S, Newman +3 more
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Nature, 1949
ACCORDING to information from the Eskimos, and records from Arctic travellers, bad effects may follow the consumption, by men and dogs, of the livers of polar bear, bearded seal, Greenland fox and Eskimo huskies, whereas livers of other Arctic mammals can usually be eaten without injury.
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ACCORDING to information from the Eskimos, and records from Arctic travellers, bad effects may follow the consumption, by men and dogs, of the livers of polar bear, bearded seal, Greenland fox and Eskimo huskies, whereas livers of other Arctic mammals can usually be eaten without injury.
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Polar Bears: The Fate of an Icon
Topics in Companion Animal Medicine, 2013Polar bears are one of the most iconic animals on our planet. Worldwide, even people who would never see one are drawn to these charismatic arctic ice hunters. They are the world's largest terrestrial carnivore, and despite being born on land, they spend most of their lives out on the sea ice and are considered a marine mammal.
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