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Posts Tagged "polar bear"

Extinction Countdown

How Did Zebras Give 2 Polar Bears Herpes?

polar bear lars

When a polar bear suddenly takes ill and dies, the natural inclination is not to suspect zebras as the cause. But according to research published August 16 in Current Biology, that’s what happened at Wuppertal Zoo in Germany in 2010. The strange saga started on June 8, 2010, when Jerka, a 20-year-old female polar bear, [...]

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Extinction Countdown

New Polar Bear Counting Method Creates Confusion

A few weeks ago, the director of wildlife for Nunavut, Canada, made an unexpected declaration, claiming that the number of polar bears (Ursus maritimus) in the western Hudson Bay region is increasing, even though scientists say the population is declining. Western Hudson Bay is one of 19 distinct polar bear subpopulations, and previous research has [...]

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Extinction Countdown

Polar Rare: The Arctic’s apex predator could disappear from Hudson Bay in 10 years

polar bear

Canada’s western Hudson Bay could lose its population of polar bears (Ursus maritimus) in as little as a decade, according to new research by biologist Andrew Derocher and others from the University of Alberta (U.A.). Derocher tells Yale Environment 360 that the polar bears in western Hudson Bay have lost 25 percent of their population [...]

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Extinction Countdown

Polar-grizzly bear hybrid found in Canada

An extremely rare “grolar bear“—a polar-grizzly bear hybrid—was shot and killed by an Inuit hunter in Canada’s Northwest Territories last month. Global warming has reportedly been driving grizzly bears (Ursus arctos horribilis) farther north in search of food, bringing them into polar bear (U. maritimus) territory. Polar bears, meanwhile, are finding themselves stranded on land [...]

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Observations

Was the Suspension of Drowned Polar Bear Discoverer Politically Motivated? You Be the Judge

polar-bears-on-ice

Flying about 460 meters above the seas off Alaska in 2004 on the hunt for bowhead whales, federal wildlife biologist Charles Monnett and colleagues spotted four white blobs floating in the water. The white blobs were polar bears, which drowned in the open ocean following a powerful Arctic storm. Two years later, Monnett and his [...]

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