A female polar bear swam 687 km across the freezing Beaufort Sea over nine days, a feat first reported in 2011. The video ...

The marathon swim first gained media attention in 2011, sparking discussion about the resilience of polar bears and the ...

Remote cameras were deployed in the Arctic mountains across nearly a decade; Valuable footage of moms and cubs emerging from ...

Above-ambient temperatures also indicate a bear in a den ... down high-energy milk, mother polar bears don’t feed at all during this time and rely on their fat reserves, losing up to 43 per ...

Polar bear mothers in the Arctic generally give birth ... nursing on milk that’s about 31 percent fat. By the time they are ready to leave the den in the spring, they are up to 20 times bigger ...

gaining fat, getting big and when they come off of that ice they have to fast.” No one wants to see a hungry polar bear, which is why these latest findings and videos of polar bear activity will ...

On Saturday morning, the Kansas City Zoo celebrated International Polar Bear Day, which actually falls ... they have less and less body fat to take care of them. There are fewer numbers of offspri ...

However, one lingering question is whether the polar bear’s diet influences the composition of the sebum they excrete, as they consume a fat-rich diet, primarily from seals, which may contribute ...

Polar bear cubs are incredibly cute — and amazingly elusive ... The cubs grow to about 20 times their birthweight by spring, due to high fat content in their mother’s milk. They leave their dens ...

"Polar bear mothers are having increasing difficulties ... They grow quickly, nursing on their mom's milk which is 31% fat, ...

Claire Hilbers, 46, of Chagrin Falls does regular polar plunges and competed in the sixth International Ice Swimming ...