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News articles on arctic animals
Mongabay.com news articles on arctic animals in blog format. Updated regularly.
(07/17/2014) Polar bears are big animals. As the world's largest land predators, a single male can weigh over a staggering 700 kilograms (about 1,500 pounds). But as impressive as they are, it's difficult to imagine counting polar bears from space. Still, this is exactly what scientists have done according to a new paper in the open-access journal PLOS ONE.
From seals to starfish: polar bears radically shift diet as habitat melts
(04/07/2014) One of the most iconic species of the ongoing climate change drama, polar bears have dropped in numbers as their habitat melts, with previous estimates forecasting a further 30 percent reduction within three generations. However, their situation may not be as dire as it seems.
Predator appreciation: how saving lions, tigers, and polar bears could rescue ourselves
(01/29/2014) In the new book, In Predatory Light: Lions and Tigers and Polar Bears, authors Elizabeth Marshall Thomas, Sy Montgomery, and John Houston, and photographers Cyril Christo and Marie Wilkinson share with us an impassioned and detailed appeal to appreciate three of the world's biggest predators: lions, tigers, and polar bears. Through lengthy discussions, combining themes from scientific conservation to local community folklore, In Predatory Light takes us step by step deeper into the wild world of these awe-inspiring carnivores and their varied plight as they facedown extinction.
Climate change killing harp seal pups
(08/20/2013) As sea ice levels continue to decline in the northern hemisphere, scientists are observing an unsettling trend in harp seal young mortalities regardless of juvenile fitness. While a recent study found that in harp seal breeding regions ice cover decreased by up to 6% a decade from 1979 on, a follow-up study in PLoS ONE compared the rate of harp seal strandings to total ice cover from 1992 to 2010.
Reduction in snow threatens Arctic seals
(11/28/2012) Arctic snowfall accumulation plays a critical role in ringed seal breeding, but may be at risk due to climate change, according to a new study in Geophysical Research Letters. Sea ice, which is disappearing at an alarming rate, provides a crucial platform for the deep snow seals need to reproduce. Ringed seals (Phoca hispida) require snow depths of at least 20 centimeters (8 inches): deep enough to form drifts that seals use as birth chambers.
Above the ocean: saving the world's most threatened birds
(11/01/2012) A life on the ocean is a perilous one for any bird. They must expend energy staying aloft for thousands of miles and learn to be marathon swimmers; they must seek food beneath treacherous waves and brave the world's most extreme climates; they must navigate the perils both of an unforgiving sea and far-flung islands. Yet seabirds, which includes 346 global species that depend on marine ecosystems, have evolved numerous strategies and complex life histories to deal with the challenges of the sea successfully, and they have been doing so since the dinosaur’s last stand. Today, despite such a track record, no other bird family is more threatened; yet it's not the wild, unpredictable sea that endangers them, but pervasive human impacts.
By imitating human voices, beluga whale may have been attempting to communicate
(10/23/2012) Five years after the death of a captive beluga whale named NOC, researchers have discovered that the marine mammal may have been trying to communicate with people by mimicking humans voices at the National Marine Mammal Foundation in San Diego. Analyzing tapes of human-like speech from the young male beluga whale, scientists writing in Current Biology note that while there have been reports of beluga whales making human like sounds before, this is the first time evidence has been captured on tape and analyzed.
Cute animal picture of the day: baby walruses on the mend
(10/11/2012) Two walrus male calves were discovered over the summer near Barrow, Alaska, dehydrated and ill, after their separate mothers perished. The calves have been receiving care at the Alaska SeaLife Center, but one will soon be moved to the Wildlife Conservation Society's (WCS) New York Aquarium and the other to the Indianapolis Zoo.
Arctic sea ice is 'toast' as old record shattered
(09/19/2012) Some twenty days after breaking the record for the lowest sea ice extent, the Arctic sea ice has hit a new rock bottom and finally begun its seasonal recovery. In the end, the Arctic sea ice extent fell to just 3.4 million square kilometers (1.32 million square miles) when only a few months ago scientists were wondering if it would break the 4 million square kilometers. The speed of the sea ice decline due to climate change has outpaced all the computer models, overrun all expert predictions, and shocked even the gloomiest scientists.
Sea ice falls to record low with over two weeks of melting left
(08/27/2012) One of the most visible impacts of climate change—melting summer sea ice in the Arctic—just hit a new milestone. Scientists with the U.S. National Snow and Ice Data Center (NSIDC) have declared that this year's Arctic sea ice extent dipped below the previous record set in 2007 as of yesterday. The record is even more notable, however, as it occurred more than a fortnight before the Arctic's usual ice melt season ends, meaning the old record will likely not just be supplanted, but shattered.
Just how far can a polar bear swim?
(05/03/2012) Polar bears (Ursus maritimus) are capable of swimming incredible distances, according to a new study published in Zoology, which recorded polar bears regularly swimming over 30 miles (48 kilometers) and, in one case, as far as 220 miles (354 kilometers). The researchers believe the ability of polar bears to tackle such long-distance swims may help them survive as seasonal sea ice vanishes due to climate change.
87 marine mammals still eaten by people
(01/24/2012) Threats to marine mammals usually include climate change, drowning as by-catch, pollution, depletion of prey, but what about eating marine mammals? A new study in Biological Conservation finds that a surprising 87 marine mammals—including polar bears, small whales, and dolphins—have been eaten as food since 1990 in at least 114 countries.
Discovery Channel backtracks, promises to air climate change episode of new Frozen Planet series
(12/07/2011) Discovery Channel has announced that it will, in fact, air the last episode of the new series Frozen Planet, which focuses solely on the impact of climate change at the world's poles. By the creators of universally-acclaimed Planet Earth, the full series explores the wildlife and environs of the Arctic and Antarctic, but the Discovery Channel came under fire after it announced it would not air the last episode, called "On Thin Ice", which deals specifically with climate change. A petition on Change.org garnered 75,000 signatures calling on the Discovery Channel to air the full series, before the network caved and announced it would do so.
Featured video: Arctic ice melt creates mass walrus 'haul-outs'
(10/06/2011) The disintegration of the Arctic sea ice, which hit the second lowest record this year, is forcing a number of Arctic animals to change their behavior.
Deepwater spill 'meets the Titanic': groups sue to stop Arctic drilling
(09/29/2011) Following the Obama administration's approval of Royal Dutch Shell to drill in the Arctic's Beaufort Sea, a wide-swathe of environmental have filed a lawsuit to stop the drilling, which could begin as early as next summer. Those filing the lawsuit today blasted Shell for what they perceived as a pathetic oil spill response plan, and the Obama administration for acquiescing to the big oil company.
Mass walrus haul-outs, polar bear cub mortality linked to climate change
(09/01/2011) Recent, unprecedented walrus haul-outs and increased instances of long-distance swims by polar bears show the direct impacts on wildlife of dwindling Arctic sea ice from climate change. These threatened species also face the prospect of offshore drilling in the Arctic after the Obama Administration recently approved a number of plans to move forward on oil exploration. At least 8,000 walruses hauled out on an Alaskan beach along the Chukchi Sea on August 17. Only a day before, the U.S. Geological Survey announced it would begin tagging walruses near Point Lay, Alaska to study how a lack of sea ice is affecting the species.