Mammals

Polar Bear

Globally polar bear populations continue to decline.  The United States is home to two distinct populations, of which, both are in decline.  The Beaufort Sea population decline from an estimated 1,800 individuals in the 1980’s and 1990’s to 1,500 individuals in 2006.  Population numbers for the Chukchi Sea area are incomplete. Persistent Organic Pollutants (POPs) such as PCB’s and mercury negatively influence the health of polar bears.  POP’s are contaminants that are slow to degrade in the environment and bond… Continue reading