Polar Bears: A Natural History of a Threatened Species
Polar Bears: A Complete Guide to Their Biology and Behavior
Polar Bear Ecology and Management in Hudson Bay in the Face of Climate Change
E. Peacock, Andy Derocher, Nick Lunn, et al.
Immobilization of polar bears (Ursus maritimus) with Telazol® in the Canadian Arctic.
Ian Stirling, C. Spencer, D. Andriashek