Prehistoric sled dogs in the Siberian Arctic ate a mix of fish, reindeer and polar bear, according to a new analysis of 9,000-year-old turds. Recovered from the early Holocene site of Zhokhov in the ...

Wild polar bears, which usually eat high-fat seals, are missing out on their marine mammal-based diet because of the human-caused rising global temperature and resulting lack of Arctic Sea ice ...

The animals were fed a higher protein mackerel-based diet and the seaweed to simulate the potential habitat and lifestyle changes polar bears may face due to climate change, particularly as the ...

A male polar bear eats a piece of whale meat Aug. 23, 2010, as it walks along the shore of Hudson Bay near Churchill, Manitoba. With Arctic sea ice shrinking from climate change, many polar bears ...