Defenders Web Pages
Polar Bear 
Defenders Publications (PDF)
Testimony of Jamie Rappaport Clark  (PDF) before US House of Representatives committee at a hearing, entitled, On Thin Ice: The Future of the Polar Bear. January 17, 2008
United States-Russia Polar Bear Conservation and Management Act of 2005 , S. 2013, 109th Congress.
Marine Mammal Protection Act (PDF)