Published: December 2005
Learn More
In Learn More the National Geographic magazine team shares some of its best sources and other information to expand your knowledge of our featured subjects. Special thanks to the Research Division.

Related Links

Wapusk National Park
The official Parks Canada website for the park.

World Conservation Union: Polar Bear Specialist Group World Wildlife Fund (WWF)
Read about polar bear research and current threats identified by the world's experts.

Geophysical Institute at the University of Fairbanks
Discover the science behind the spectacle of the northern lights.

Peatland Ecology Research Group
Read more about what makes this ecosystem unique and about preservation efforts.


Derocher, Andrew, Nicholas Lunn, and Ian Stirling. Polar Bears in a Warming Climate. Integrative and Comparative Biology (2004), 44:163-176.

Hassol, Susan Joy. Impacts of a Warming Arctic: Arctic Climate Impact Assessment. Cambridge University Press, 2004.

Feldhamer, George A., Bruce C. Thompson, and Joseph A. Chapman, eds. Wild Mammals of North America: Biology, Management, and Conservation, 2nd ed. Johns Hopkins University Press, 2003.

NGS Resources

Eliot, John L. "Polar Bears: White on White." National Geographic (February 2004), 20-47.

Kranking, Kathy. "Polar Bears: Ultra Cool!" National Geographic World (December 2001), 24-8.

Rosing, Norbert. "Bear Beginnings: New Life on the Ice." National Geographic (December 2000), 30-9.

Eliot, John L. "Polar Bears, Stalkers of the High Arcti.," National Geographic (January 1998), 52-71.

Crow, Sandra Lee. Penguins and Polar Bears: Animals of the Ice and Snow. National Geographic Books, 1985.