How much they weigh: From as little as 60 pounds (27 kilograms) to more than 1,700 pounds (771 kg) ...

Pregnant polar bear females usually enter the den in late autumn and remain there throughout the winter. They don't eat ...

While the bears enjoy soaking up the sun, warmer weather triggers several physiological changes. Baxendell explained polar ...

Past research has shown that how long polar bear mothers remain at their dens impacts cubs' odds of survival ... presumably more important than eating. Historically, researchers studied denning ...

Polar bear cubs then eat portions of meat and seal blubber to supplement their diets. The polar bear cubs learn to hunt by observing their mother and usually start trying to stalk their prey in their ...

During this time, bears don't need to eat or drink ... However, pregnant polar bears do dig dens to prepare for the birth of their cubs. They spend most of their time in the den and rely on ...

Past research has shown that how long polar bear mothers remain at their dens impacts cubs’ odds of survival ... presumably more important than eating. Historically, researchers studied denning ...

The world is waking back up again—and in the case of Yellowstone National Park's black bears, it literally is! Aside from ...

Denning begins when pregnant polar bears dig out snow dens to give birth. Cubs are born tiny and vulnerable ... engaging in activities that seem more critical than eating. Historically, researchers ...