Claudio Contreras / Harbour Seal (Phoca vitulina), near San Quintin, Baja California Peninsula, Mexico, December.

Merryn Thomas / Pladda Lighthouse, with Seals (Phoca vitulina) on rocks in foreground at Seal Shore Campsite, Kildonan, Arran, Scotland, August 2011.

Erlend Haarberg / Common / Harbour seal (Phoca vitulina) looking out of water, Iceland, May

Erlend Haarberg / Common / Harbour seal (Phoca vitulina) swimming in wave, Iceland, August

Danny Green / 2020VISION / RESTRICTED USE - Common seal (Phoca vitulina) pup resting on a sandbank during a sandstorm, Donna Nook, Lincolnshire, England, UK, October. 2020VISION Exhibition. 2020VISION Book Plate.

Chris Gomersall / 2020VISION / Atlantic grey seal (Halichoerus grypus) in Lerwick harbour, Shetland Islands, Scotland, UK, October

Laurie Campbell / Common / Harbour Seal (Phoca vitulina) bottling / sleeping upright in water and moored in bed of sea thong weed, Islay, Scotland, April

Terry Whittaker / 2020VISION / Common seals (Phoca vitulina) hauled out on saltmarsh, Wallasea Wild Coast Project, RSPB Greater Thames Futurescapes Project, Wallasea Island, Essex, England, UK, October

Brent Stephenson / Weddell Seal (Leptonychotes weddellii) with wet fur after hauling onto a beach. Neko Harbour, Antarctic Peninsula, Antarctica, December.

Terry Whittaker / 2020VISION / Common / Harbour seals (Phoca vitulina) hauled out on mudflats at saltmarsh, Wallasea Island RSPB reserve, Essex, UK, March 2011

Peter Cairns / 2020VISION / Grey seals (Halichoerus grypus) on haul out in fishing harbour with ferry in the background, Lerwick, Shetland Isles, Scotland, UK, June 2010. Photographer quote: 'These seals line up to take advantag...

Peter Cairns / 2020VISION / Grey seal (Halichoerus grypus) on haul out in fishing harbour with ferry in the background, Shetland Isles, Scotland, UK, June 2010