The keys to conserving large mammals, such as bears, often lie in better understanding their ecophysiology. Armed with knowledge about the animals' energy needs, conservationists can encourage actions that better preserve populations and ensure that their habitats will be able to sustain them both now and as the climate continues to rapidly change. In this episode of BioScience Talks, we're joined by Dr. John Whiteman of Old Dominion University, who describes efforts to characterize metabolisms among large mammals from India to the Arctic—and the ways that this work fuels the broader scientific endeavor. Read Dr. Whiteman's 2019 BioScience article. Read more about polar bear diets (and body temperatures). Wildlife SOS Free the Bears Subscribe on iTunes. Subscribe on Stitcher. Catch up with us on Twitter. Photograph: Mike Lockhart.