Charlie Summers / Humpback salmon (Oncorhynchus gorbuscha) male that has contracted the onset of gray mold / grey mould, making its way upstream in Walker Cove Creek, Misty Fjord National Monument, Alaska, USA, August...

Brent Stephenson / Brown Bear (Ursus arctos) grazing on tall grass near the shoreline. Walker Cove, Alaska, United States, July.

Brent Stephenson / Fully grown Northern River Otter (Lutra canadensis) pup swimming along the shoreline. Walker Cove, Alaska, United States, July.

Brent Stephenson / Surf Scoter (Melanitta perspicillata) male running along the surface gaining speed to take off. Walker Cove, Alaska, United States, July.

Matthias Breiter / Walker Cove aerial, Misty Fjords National Monument, Alaska

Carol Walker / Wreck of a whalring ship in Paradise Cove, Antarctica.

Carol Walker / Leopard seal (Hydrurga leptonyx) lying on ice. Paradise Cove, Antarctica.

Carol Walker / Crabeater seal (Lobodon carcinophagus) at ase surface, Paradise Cove, Antarctica.

Carol Walker / Crabeater seals (Lobodon carcinophagus), lying on the ice and swimming in the water. Paradise Cove, Antarctica