Researchers See Signs of Chronic Stress in Polar Bears' Blood

Abnormally long fasts linked to melting sea ice may be pushing polar bears to their limits.

Decades-Old Chemicals May Be Threatening Polar Bear Fertility, As

Born to Roam - The Suffering of Polar Bears in Zoos by BornFree

Test QA Polar Bears International

Polar bears could be struggling to catch enough prey, study shows

Polar bears not able to slow down metabolism when food scarce

Stress in Polar Bears - Forschen, Handeln

What Keeping Polar Bears in Zoos and Aquariums Does to These

If world gets warmer, these cities could be 'unlivable:' study

Current state of knowledge on biological effects from contaminants

Researchers See Signs of Chronic Stress in Polar Bears' Blood

How do polar bears eat when there's no sea ice? Not well, study

Skin biopsies from affected and unaffected polar bears captured in