Polar Bears, A Complete Guide to Their Biology and Behavior, Johns Hopkins University Press, Andrew E. Derocher,Biology, life sciences,Mathematics and Science, Arctic;sea ice;climate change;global warming;conservation;evolution,, , United States, en-UShttps://www.press.jhu.eduArctic;sea ice;climate change;global warming;conservation;evolution, [BLURB],[CITY],,books, ebooks, biblet, Book2look