Billy Black / Gull (Larinae) sitting on mooring ball in calm waters on misty day. Robinhood, Maine, USA, July 2010.

Franco Banfi / California sea lion ( Zalophus californianus), rests on buoy, Magdalena Bay, Baja California Sur, Mexico.

Ashley Cooper / Sunrise over sailing boats on Lake Windermere in Ambleside, Lake District, England, UK. December 2014.

Ashley Cooper / Sunrise over sailing boats on Lake Windermere in Ambleside, Lake District, England, UK. December 2014.

Ashley Cooper / Storm Gertrude, with winds of up to 132 mph resulted in this Trinity House 'Cardinal Mark' ripped off its steel anchor chain and washed up on Walney Island. England, UK. January 2016

David Fleetham / Large wave-energy buoy off Kaneoho Bay, Oahu. The 40-kW experimental buoy employs the bobbing motion of the buoy to drive an electrical generator, that sends power to the island via underwater cable,...

David Fleetham / Shoal of Bluelined / Bluestriped snapper (Lutjanus kasmira) passing a diver working on a large wave-energy buoy off Kaneoho Bay, Oahu. The 40-kW experimental buoy employs the bobbing motion of the buo...

David Fleetham / Diver working on a large wave-energy buoy off Kaneoho Bay, Oahu. The 40-kW experimental buoy employs the bobbing motion of the buoy to drive an electrical generator, that sends power to the island via...

David Fleetham / Large wave-energy buoy, partially submerged, in Honolulu Harbour before being towed to Kaneoho Bay, Oahu, Hawaii. The 40-kW experimental buoy employs the bobbing motion of the buoy to drive an electri...

Five Films / Marine plastic pollution washed up on the shore amongst melting sea ice, Svalbard, Norway, August 2017.

Michael Quinton / Steller's Sea Lion (Eumetopias jubatus) group on buoy, Alaska

Michael Quinton / Steller's Sea Lion (Eumetopias jubatus) group on buoy, Alaska