Even the lakes and rivers are freezing later and unfreezing earlier. ... The polar bears eat very little else except ringed seals. The bears hunt these seals by the ices edge or though the ice itself. ... (Environment 2) Without the polar bears, the food chain would be broken. ... Walruses rest, molt, and bear their young on the ice. ...

• Word Count: 1153
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School