Adult female walruses rest on an ice flow with young walruses in the Eastern Chukchi Sea, Alaska, in July 2012.
Adult female walruses rest on an ice flow with young walruses in the Eastern Chukchi Sea, Alaska, in July 2012. S.A. Sonsthagen Associated Press
Adult female walruses rest on an ice flow with young walruses in the Eastern Chukchi Sea, Alaska, in July 2012. S.A. Sonsthagen Associated Press