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Polar bear facts, information and research from the foremost polar bear conservation group. Polar bear pictures, videos and huge FAQ file.

Free essays, research papers, term papers, and other writings on literature, science, history, politics, and more.

Nature World News

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Watch full episodes of your favorite PBS shows, explore music and the arts, find in-depth news analysis, and more. Home to Antiques Roadshow, Frontline, NOVA, PBS Newshour, Masterpiece and many others.

Polar bear science - past and present

Because we only have the one planet Earth... WWF believes that, together, we must save endangered species, conserve natural environments and live sustainable lives.

MNN is the leading resource for daily environmental news, green commentary and simple steps to save money, stay healthy, and support the planet.

Encyclopedia.com – Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library.

Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate & environment, computer...

Environmental news and analysis.