News; Sci/Tech; How old is that polar bear? The answer is in its blood. Aug. 14, 2023 Updated Mon., Aug. 14, 2023 at 9:32 p.m. A polar bear carefully uses stepping stones along the shore of a ...

The results confirmed the researchers' fears. Scientists make alarming discovery after studying polar bear blood samples: 'Things are changing' first appeared on The Cool Down.

In a study that has provided clues about how polar bear disease could be linked to ice loss, scientists examined blood samples from bears in the Chukchi Sea - between Alaska and Russia.

An aerial view of the glaciers as a polar bear walks in Svalbard and Jan Mayen, Norway, on July 15, 2023. Sebnem Coskun—Anadolu Agency/Getty Images Full-grown bears are by no means immune to ...

By mid-century, polar bears may not be able to survive as far south as Churchill, he said, a future also forecast in a 2012 review he co-authored with legendary polar bear researcher Ian Stirling.

How Old Is That Polar Bear? The Answer Is in Its Blood. So-called “epigenetic clocks” are helping wildlife biologists estimate the ages of animals far more easily than in the past.