polar bear (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption A curious polar bear near Greenland checks out the Polarstern. Polar bears, which feed on seals, are part of the arctic ocean food web that climate change threatens. This image complements work led by UEA researchers and published Sept. 16, 2021 in Nature Communications. Credit Katrin Schmidt Usage Restrictions Use as credited. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.