Scientists make alarming discovery after studying polar bear blood samples: 'Things are changing' Story by Noah Jampol • 1w. P olar bears have been facing new survival challenges in recent years.

We were camped in the Northwest Territories conducting research when our camp dog started barking. Then the polar bear ...

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.

But these changes are poorly understood in the Arctic, a region that is morphing rapidly under climate change (SN: 11/15/21).Rode and her colleagues looked to polar bear immune systems for crucial ...

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.

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.