Brent Stephenson / Sunset off Scott Island, with floating pieces of sea ice, Scott Inlet, Baffin Island, Canadian Arctic, August 2015.

Mark MacEwen / Firefly squid (Watasenia scintillans) close to beach during mating season. Toyama Bay, Japan.

Solvin Zankl / Brown hyena (Hyaena brunnea) stalking fur seal (Arctocephalus pusillus) pup, Sperrgebiet National Park, Namibia, December. Sequence 1/8

Solvin Zankl / Black backed jackal (Canis mesomelas) attacking Cape fur seal (Arctocephalus pusillus) pup, Sperrgebiet National Park, Namibia, December. Sequence 3/6

David Noton / Stars and Milky Way over Durdle Door and the Jurassic Coast, with the lights of Weymouth and Portland beyond, Dorset, England, UK, December 2013.

Olga Kamenskaya / Coast of Olkhon island, Lake Baikal, Siberia, Russia, September 2013.

Richard Du Toit / Aerial photograph of Kosi Bay, KwaZulu-Natal Province, South Africa, Traditional Fish Traps, June 2010

Steven David Miller / A beach at Isthmus Bay provides some good surf waves, Isthmus Bay, Torndirrup National Park, Albany, Western Australia, December

Barrie Britton / King Penguin (Aptenodytes patagonicus) colony, with mountains reflected in the ocean, St Andrew's Bay, South Georgia. Photograph taken on location for the BBC Frozen Planet series, October 2009.

Alex Mustard / 2020VISION / Yellow / spiny seahorse (Hippocampus guttulatus) female sheltering is meadow of common Eelgrass (Zostera marina) Studland Bay, Dorset, UK, August. Did you know? The two species of seahorse found in Br...

Matthew Maran / A view of a forested inlet lit by low sunlight. Aggro Beach, west coast of Vancouver Island, Canada, September 2010.

Nick Upton / Shoal of young sardines (Sardina pilchardus) swimming in various directions close to the shore in a shallow sandy bay, viewed from above water. Eastern Lesbos /Lesvos, Greece, August.