Polar Bear | National Wildlife Federation
Polar bear population ecology – Kristin Laidre
Rough Drafts | zhou.2983's Blog
Polar bear - Wikipedia
polarbearscience | Polar bear science – past and present
Top 10 facts about polar bears | WWF
Glacial Ice Offers Polar Bears a Precarious Climate Refuge - Eos
Arctic ice loss forces polar bears to use four times as much energy to survive – study | Arctic | The Guardian
HOW THE HABITAT OF POLAR BEARS IS CHANGING | Ecography
Polar Bears | The Marine Mammal Center
The Ecological Impact of Climate Change on Polar Bears
Listing the Polar Bear | Saving Earth | Encyclopedia Britannica
Polar bear habitat - WWF Arctic
Polar bears face starvation as unlikely to adapt to a land-based diet, says report | Polar regions | The Guardian
Polar Bear | Species | WWF
Animal of the day: Polar Bears Dec. 31, 06 | animal kingdom
Polar Bears | The Marine Mammal Center
Arctic Ecosystem - Dive & Discover
Habitat | Polar Bears International
Polar bear | Description, Habitat, & Facts | Britannica
Habitat loss could have negative implications for long-term health of polar bears
What is Happening to the World's Polar Bears?
From seals to starfish: polar bears radically shift diet as habitat melts
Arctic sea ice vital to polar bear habitat: biologists
To feed or to perish in an iceless world | ConservationBytes.com
