Ismaele Tortella / White tailed eagle (Haliaeetus albicilla) catching fish, Lofoten, Norway, August.

Espen Bergersen / Aerial shot of a Humpback whale (Megaptera novaeangliae) diving and showing tail fluke, Troms, Norway, January.

Espen Bergersen / Aerial shot of two Humpback whales (Megaptera novaeangliae) coming to the surface to breathe, Sommaroy, Troms, Norway, January.

Espen Bergersen / Aerial shot of a group of Killer whales (Orcinus orca) tail slapping, shot pans to the right, Skjervoy, Troms, Norway, November.

Espen Bergersen / Aerial shot of Killer whale (Orcinus orca) carousel feeding close to Tromvik harbour, Troms, Norway, December.

Espen Bergersen / Aerial shot of Killer whale (Orcinus orca) hunting Atlantic herring (Clupea harengus) using carousel feeding, with herring jumping out of the water and gulls (Larus) circling above, Tromvik, Troms, No...

Espen Bergersen / Aerial shot of two Killer whales (Orcinus orca) spyhopping, with a snowy landscape in the background, Skjervoy, Troms, Norway, December.

Espen Bergersen / Aerial shot of a small pod of Killer whales (Orcinus orca) at surface, with snowy landscape in the background, Skjervoy, Troms, Norway, December.

Espen Bergersen / Aerial shot of a pod of Killer whales (Orcinus orca) carousel feeding, Skjervoy, Troms, Norway, November.

Espen Bergersen / Aerial shot of a pod of Killer whales (Orcinus orca) carousel feeding, drone moving closer, Skjervoy, Troms, Norway, November.

Sven Zacek / Bearded seal (Erignathus barbatus) sunbathing on iceberg broken off from glacier. Kongsfjorden fjord, Spitsbergen, Norway. June 2014.

Terry Whittaker / Arctic fox (Vulpes lagopus) feeding in snow, blue colour morph, Hornstrandir Nature Reserve, Iceland, March.