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They survive by hunting from freshwater ice that pours into the ocean from Greenland’s glaciers -- an unusual strategy for polar bears.
may
Because of climate change, they need to spend much more energy to find food.
Their fate is linked to what happens in the Arctic's sea ice
Known to feed mainly on seals, the images Jon Aars at the Norwegian Polar Institute captured of a polar bear dining on dolphins is a "culinary" first for the species. The photographs were taken in the Norwegian High Arctic, mid-April 2014. The bear was seen feeding on the carcass of one white-beaked dolphin, and covering another with snow.
After carefully calculating the net nutritional gain polar bears have from land-based food like caribou, berries or bird eggs, researchers found this is far from enough to compensate their typical fat-rich diet based on marine mammals. In consequence, as ice retreats and spring hunting season shortens polar bear populations are expected to fall dramatically. According to the study, two-third of the world's polar bears will disappear by mid-century and by the end of the century the could follow, if the issue is not addressed.
Global warming is all fun and games until somebody breaks a penis! For a long time, scientists have been aware that chemical pollution makes polar bears' testes and penis bone smaller. Concerns over polar bears' mating potential have now grown after Danish researchers found pollution also reduces penile bone density, increasing the risk of fracture during mating.
What do you get when you cross a grizzly bear with a polar bear? Simple, a prizzly bear or golar bear, depending on the side you’re looking from. What about a narwhal with a beluga whale? A narluga! No, these aren’t childish word plays, nor elaborated photoshop attempts – these animals truly exist and come […]
As the global oil supply is starting to grow thin, the Arctic area seems to be more and more interesting to oil barons, but of course, there’s the problem of those pesky protected animals – so what do we do? Get rid of that, of course. A group of plaintiffs including the state of Alaska […]
A new research has found after analyzing the genomes of polar bears and brown bears that the two species interbred, after the two species split some 5 million years ago, during periods of warmer climate. Recent evidence suggests this is happening today as well, as an effect of global warming. The team of scientists from Pennsylvania […]
Global warming has significant consequences to Earth’s ecosystems, each effect triggering another one in a slew of chain reactions. Frighting enough, rising temperatures and changed global weather patterns has caused certain types of plants and animals to become smaller, claims a new study published Monday in the journal Nature Climate Change. Warmer and drier weather causes plants […]
