Andy Rouse / Polar Bear (Ursus maritimus) portrait in sea-ice landscape. Wide angle / fish-eye shot. Svalbard, Norway, September.

Ingo Arndt / Aerial shot over a herd of Guanacos (Lama guanicoe), Torres del Paine National Park, Patagonia, Chile, April.

SCOTLAND: The Big Picture / Northern gannets (Morus bassanus) diving for fish, split level shot, Shetland, Scotland, UK, July.

SCOTLAND: The Big Picture / Northern gannets (Morus bassanus) diving for fish, split level shot, Shetland, Scotland, UK, September.

Espen Bergersen / Aerial shot of two Killer whales (Orcinus orca) swimming inside a shoal of Atlantic herring (Clupea harenguis), hunting, Sommaroy, Troms, Norway, January.

Espen Bergersen / Aerial shot of two Killer whales (Orcinus orca) swimming inside a large shoal of Atlantic herring (Clupea harenguis), hunting, Sommaroy, Troms, Norway, January.

Espen Bergersen / Aerial shot of a huge shoal of Atlantic herring (Clupea harenguis), with a Humpback whale (Megaptera novaeangliae) nearby, Sommaroy, Troms. Norway, January.

Philippe Clement / Wide-angle shot of Northern gannets (Morus bassanus) nesting in a breeding colony, Hermaness NNR, Unst, Shetland Islands, Scotland, UK, May.

Sandesh Kadur / Wide angle shot of a pair of Blue footed boobies (Sula nebouxii) displaying, Galapagos Islands, Ecuador.

Juergen Freund / Wide angle shot of Barron Falls after a cyclone, showing increased flow of water, Wet Tropics World Heritage Area, Cape Tribulation, North Queensland, Australia. 2017.

John Waters / Wide-angle shot of a pair of Common European toads (Bufo bufo) in amplexus, jumping into a pond, Priddy, Somerset, England, UK, April.

Gavin Hellier / Wide angle shot of the Supertree Grove illuminated at night, Each tree is a large vertical garden, Gardens by the Bay, Singapore, June 2017. Hellier