image: Polar bear resting on the sea ice. This material relates to a paper that appeared in the 2 Feb. 2018, issue of Science, published by AAAS. The paper, by A.M. Pagano at US Geological Survey in Anchorage, Alaska, and colleagues was titled, "High-energy, high-fat lifestyle challenges an Arctic apex predator, the polar bear." view more
Credit: Brian Battaile, USGS