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2010-03-01 15:46:28

Researchers sequence the oldest ancient genome to date from a mammal A rare, ancient polar bear fossil discovered in Norway in 2004 is yielding a treasure trove of essential information about the age and evolutionary origins of the species whose future is now seen as synonymous with the devastation wrought by climate change. A paper published in the current issue of the Proceedings of the National Academy of Sciences by researchers at Penn State University, the University at Buffalo, the...

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2010-01-08 09:40:00

Bears changing habitat in response to sea ice conditions A long-term study showing the changes in habitat associations of polar bears in response to sea ice conditions in the southern Beaufort Sea has implications for polar bear management in Alaska. Karyn Rode, a polar bear biologist with the U.S. Fish and Wildlife Service in Anchorage, Alaska and one of the study's authors, says data collected between 1979 and 2005 show that polar bears in the region are occurring more frequently on land...

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2009-12-09 10:55:00

With growing concerns about the effects of global warming on polar bears, it's increasingly important to understand how other environmental threats, such as mercury pollution, are affecting these magnificent Arctic animals. New research led by biogeochemists Travis Horton of the University of Canterbury and Joel Blum of the University of Michigan lays the groundwork for assessing current and future effects of mercury deposition and climate change on polar bears. The study appears in the...

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2009-10-31 10:20:00

Canada and Greenland are taking steps to protect populations of polar bears that live between the two countries, officials announced on Friday. Canada's Environment Minister Jim Prentice announced this during a conference call after he signed a memorandum of understanding (MOU) along with Greenland's Minister of Fisheries, Hunting and Agriculture, Ane Hansen and Prentice's Nunavut territory representative Daniel Shewchuk. The deal suggests the writing of a partnered committee that would...

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2009-10-23 13:00:00

President Obama designated more than 200,000 square miles in Alaska and off its coast as "critical habitat" for polar bears on Thursday, an action that could add restrictions to future offshore drilling for oil and gas, The Associated Press reported. Under federal law, agencies are restricted from taking actions that may adversely affect critical habitat and interfere with polar bear recovery. "It is a step in the right direction to help polar bears stave off extinction, while recognizing...

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2009-06-18 14:41:07

Queen's researchers combine Inuit skills, DNA analysis in integrated method A new approach to tracking polar bears, developed by Queen's University researchers, will shed more light on the potentially endangered Arctic animal and help boost the economy of Canada's north. Integrating the traditional knowledge of Inuit hunters with state-of-the-art genetic DNA analysis, a three-part method developed by biologists Peter V.C. de Groot and Peter Boag, is cheaper and much easier on the bears than...

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2009-05-19 13:51:53

A U.S. study refutes a publicized criticism of the negative effects of climate change on polar bears, supporting the listing of them as a threatened species. The study -- conducted by scientists from the U.S. Geological Survey, the Woods Hole Oceanographic Institution, the Universities of Alaska and Maryland, the Canadian Wildlife Service and the U.S. Forest Service -- refutes point-by-point the criticism of negative polar bear population predictions. The new study is said to reinforce the...

2009-03-18 23:27:12

Representatives of five countries are meeting in Norway to discuss the ongoing conservation of polar bears. Canada, Denmark/Greenland, Norway, Russia and the United States last met in Oslo in 1981, when they voted to extend their 1973 protection agreement indefinitely, the Norway Post reported Wednesday. The World Wildlife Federation, however, said the meeting has excluded outside groups and other observers from parts of the meeting that involve discussion of climate change. We do not know...

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2009-03-16 13:41:53

Norway's Environment and Development Minister warned on Monday that melting Arctic ice is threatening the habitat of polar bears. "If the ice is disintegrating in the Arctic, it will have enormous impact on polar bears," Erik Solheim told Reuters a day ahead of a meeting to discuss the future of polar bears. The meeting will bring together nations that are home to the large white carnivores "“ Canada, Norway, the U.S., Russia and Danish-administered Greenland. In 1973, these range...

2009-01-17 08:07:52

The first Canadian federal summit on the environmental plight of polar bears has concluded with considerable differences of opinion in Winnipeg, Manitoba. Federal Environment Minister Jim Prentice hosted the meeting of scientists, wildlife officials and Inuit leaders, the Globe and Mail reported Saturday. Canada is home to about 15,000 polar bears, about two-thirds of the world population, in 13 distinct areas. While the United States declared the bears an endangered species in May 2008,...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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