Eric Baccega / Grizzly bear (Ursus arctos horribilis) catching salmon in Brooks river, Katmai National Park, Alaska, USA, July

Stephane Granzotto / Alpine ibex (Capra ibex) feeding in deep snow, digging to reach food, Rhone-Alpes, France, December.

ZSSD / Hawaiian Crow (Corvus hawaiiensis) using stick tool to reach food, native to Hawaii

ZSSD / Hawaiian Crow (Corvus hawaiiensis) using stick tool to reach food, native to Hawaii

Bence Mate / Great egret (Ardea alba) hunting fish, Lake Csaj, Pusztaszer, Hungary, February. Winner of the Portfolio category of the Terre Sauvage Nature Images Awards competition 2015.

Neil Aldridge / Urban Red fox (Vulpes vulpes) searching for food near bins in a courtyard at night, West London, United Kingdom, May 2014. Finalist in the Urban category of the Wildlife Photographer of the Year Awar...

Sven Zacek / Roe deer (Capreolus capreolus) buck with velvet antlers in snowy field at sunset, Tartumaa, Estonia, March.

George Sanker / Great egret (Ardea alba) taking off with fish prey in mouth, Myakka River State Park, Florida, USA, March.

Krijn Trimbos / Great crested grebe (Podiceps cristatus) carrying chick while its mate approaches with food, Netherlands, May.

Denis-Huot / Olive baboon (Papio anubis) males fighting over newborn Thomson's gazelle (Eudorcas thomsonii) prey, Masai-Mara game reserve, Kenya.

Markus Varesvuo / Siberian Jay (Perisoreus infaustus) flying over snow covered ground, carrying acorn in beak, Kuusamo Finland, Scandinavia, March. Magic Moments book plate.

Bence Mate / Great reed warbler (Arcocephalus arundinaceus) chick begging for food, with bokeh affect from water, Pusztaszer, Hungary, June.