The technique which uses DNA from traces of cells left behind by the bears has been described as game changing for polar bear research. It's less intrusive than other techniques and could help ...
To collect e-DNA from wild polar bears in northern Alaska, we sampled the upper layer of snow (~1 cm) from their footprints. The snow was thawed and filtered to capture DNA—in the form of epidermal ...
(B.J. Kirschhoffer/Polar Bear International/Submitted to The Weather ... "Snow [becomes] caught in the fur on a dog’s foot, melting slightly from body heat or being squeezed as the dog walks ...
This photo shows the rear paws of a polar bear temporarily sedated for research in East Greenland in 2022. The bear has large chunks of ice frozen onto its feet, which the researchers removed.
Polar bears have small bumps on their foot pads that help provide traction on slippery surfaces. These bumps, which are larger than those on the pads of other bear species like brown and black ...