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Polar sea ice is ever-changing. It shrinks, expands, moves, breaks apart, reforms in response to changing seasons, and rapid climate change. It is far from a homogenous layer of frozen water on the ocean's surface, but rather ...
As climate change rapidly transforms Arctic marine systems, the dramatic image of a polar bear struggling on a melting ice floe has become symbolic of the region's environmental crisis. But scientists argue that coastal Arctic ...
Many large mammals have lost genetic diversity, often thanks to the actions of people shrinking their populations. The implications can be severe because without genetic diversity, a population does not have a "genetic database" ...
Searching for polar bears where the Churchill River dumps into Canada's massive Hudson Bay, biologist Geoff York scans a region that's on a low fat, low ice diet because of climate change.
A polar bear was spotted in Iceland for the first time since 2016—and was promptly shot dead by police.
A team of molecular ecologists at the University of Copenhagen, in Denmark, has found that polar bears developed unique features that allowed them to survive in a harsh, cold environment just 70,000 years ago.
The Hammerschmiede fossil site in southern Germany has yielded finds from about 11.5 million years ago that have rewritten evolutionary history. The sole species of bear discovered to date at the site was a relative of the ...
When the hot summer weather kicks in you may find yourself feeling concerned about furry pets and other animals we live close by to. But fur and hair are ancient adaptations that allowed human ancestors to develop more active ...
At first glance, it looks like an unassuming farm. Cows are scattered across fenced-in fields. A milking barn sits in the distance with a tractor parked alongside. But the people who work there are not farmers, and other ...
Climate change is particularly intense in the Arctic. To assess its consequences and determine what role this region plays in global warming, two teams of scientists from EPFL have visited the area. One to gain a better understanding ...
