Jordi Chias / Crabeater seals (Lobodon carcinophaga) resting on ice floating ice sheet, Antarctic Peninsula, Antarctica.

Jordi Chias / Crabeater seals (Lobodon carcinophaga), Antarctic Peninsula, Antarctica.

Jordi Chias / Crabeater seal (Lobodon carcinophaga) hunting under water, Antarctic Peninsula, Antarctica.

Mark Carwardine / Tourists in dinghy watching Crabeater seals on iceberg, Antarctica.

Kathryn Jeffs / Southern Type B Killer whale (Orcinus orca) spyhops to see if Crabeater seals (Lobodon carcinophagus) are potential prey, Antarctica. Taken on location for BBC Frozen Planet series, January 2009

Brent Stephenson / Crabeater Seal (Lobodon carcinophaga) hauled out on ice. Pleneau Island, Antarctica, January.

Steven Kazlowski / Crabeater seals (Lobodon carcinophagus) and seagulls feeding on a school of krill in waters off the western Antarctic Peninsula, Southern Ocean

Steven Kazlowski / Crabeater seal (Lobodon carcinophagus) resting on ice along the western Antarctic Peninsula, Southern Ocean

Doug Allan / Crabeater seals under ice {Lobodon carcinaphagus} Antarctica

Doug Allan / Crabeater seal under ice {Lobodon carcinaphagus} Antarctica

Ashley Cooper / Crabeater seal (Lobodon carcinophaga) urinating on ice with one eye shut. Antarctica. February 2019.

Jordi Chias / Crabeater seal (Lobodon carcinophaga), Antarctic Peninsula, Antarctica.