NOAA researcher says Arctic marine mammals are ecosystem sentinels
As the Arctic continues to see dramatic declines in seasonal sea ice, warming temperatures and increased storminess, the responses of marine mammals can provide clues to how the ecosystem is responding to ...
Physicists reveal novel magnetoelectric effect
(Phys.org) —New research at the University of Arkansas reveals a novel magnetoelectric effect that makes it possible to control magnetism with an electric field.
How do polar bears stay warm? Research finds an answer in their genes
(Phys.org) —In the winter, brown and black bears go into hibernation to conserve energy and keep warm.
Experts nix Canada move for sad Argentine polar bear
A polar bear said to be depressed in Argentina will not move to Canada, after veterinary experts said the trip would be too dangerous to his health.
Hopes for depressed Argentina polar bear to go to Canada
Arturo has been in mourning since the death of his companion in 2012. It is summer now in Argentina, and he is exhausted from the heat. A trip to cool Canada might brighten his mood.
Researchers find temperature feedback magnifying climate warming in Arctic
Quantum dots provide complete control of photons
By emitting photons from a quantum dot at the top of a micropyramid, researchers at Linköping University are creating a polarized light source for such things as energy-saving computer screens and wiretap-proof ...
Imaging ferroelectric domains
(Phys.org) —When thin films of ferroelectric materials are grown on single-crystal substrates, they can develop regions of aligned polarization—called "domains"—that often adopt complex patterns. Manipulation ...
Biomarker for stress hormones in polar bears, wildlife affected by global climate change
Chemical analyses by neuroscientist Jerrold Meyer and colleagues at the University of Massachusetts Amherst are helping to establish hair cortisol concentration (HCC) as an important new biomarker for stress in wild animals ...
Fur and feathers keep animals warm by scattering light
In work that has major implications for improving the performance of building insulation, scientists at the University of Namur in Belgium and the University of Hassan I in Morocco have calculated that hairs ...
Polar bear diet changes as sea ice melts
A series of papers recently published by scientists at the American Museum of Natural History suggests that polar bears in the warming Arctic are turning to alternate food sources. As Arctic sea ice melts ...
Researchers say polar bears are victims in public war of words
Polar bears and Inuit communities have become victims in the public war of words on climate change and wildlife conservation, according to researchers from Britain and Canada.
Polar bear dies at South African zoo
One of South Africa's two polar bears has died at the Johannesburg Zoo, leaving its mate now believed to be the only polar bear in Africa, a veterinarian said Wednesday.
Potential future data storage at domain boundaries
Storing more and more in an ever-smaller space – what sounds impossible is in fact just part of the daily routine in information technology, where for decades, increasing amounts of data have been successfully ...