Andy Rouse / Polar bear (Ursus maritimus) new year cub, 6 months, standing on hind legs, Svalbard, Norway (non-ex) July 2007

David Pattyn / Mountains in snow, Aiguille du Tour with Tower Glacier in front, Chamonix, Haute Savoie, France. December 2011

David Pattyn / Three Dalmatian Pelicans (Pelecanus crispus) portrait on lake. Lake Kerkini, Greece, March 2012.

David Pattyn / Dalmatian Pelican (Pelecanus crispus) close-up portrait. Lake Kerkini, Greece, March 2012.

David Pattyn / Black necked grebe (Podiceps nigricollis) frontal view of pair mating, La Dombes lake area, France, April

David Pattyn / Spectacled caiman (Caiman crocodilus) portrait with head just on water surface, Pantanal, Brazil

David Pattyn / Southern tamandua / Lesser anteataer (Tamandua tetradactyla) standing up in a defensive posture, Southern Pantanal, Brazil

David Pattyn / Burrowing Owl (Athene cunicularia) perched on a wooden fence backlit at sunrise, Southern Pantanal, Mato Grosso do Sul State, BrazilAugust

David Pattyn / Great Crested Grebe (Podiceps cristatus) with two young chicks on her back. La Dombes lake area, France, July.

David Pattyn / Siskins (Carduelis spinus) fighting over food. Oisterwijk, The Netherlands, March.

David Pattyn / Dalmatian Pelican (Pelecanus crispus) head on close up portrait. Lake Kerkini, Greece, March.

David Pattyn / Stormy coastal landscape with heavy rainfall approaching the coast in very windy conditions with cacti at the edge of the beach, Marao peninsula, Bahia, Brazil, August 2010

David Pattyn / Giant otter (Pteronura brasiliensis) running at the edge of a river while playing with a family member, Rio Tres Irmaos, Pantanal, Brazil

David Pattyn / Spectacled caiman (Caiman yacare) walking on a sandy shore at the edge of a river at night, Pantanal, Brazil

David Pattyn / Common cranes (Grus grus) flock flying against colourful sky at sunrise, Pruchten, Germany, October

David Pattyn / Bluebell (Hyacinthoides non-scripta) carpet under Beech woodland (Gagus sylvatica) with dawn sunlight, Haller Forest, Halle, Belgium, April 2010

David Pattyn / Red fox (Vulpes vulpes) close up portrait, The Netherlands

David Pattyn / Red foxes (Vulpes vulpes) two fighting, probably over territory, The Netherlands, August

David Pattyn / Red fox (Vulpes vulpes) head portrait, The Netherlands

David Pattyn / Alpine ibex (Capra ibex) adult male chasing two young males away, Gran Paradiso National Park, Italy, July

David Pattyn / Mountains covered in snow, Chamonix, France, in winter of December 2011

David Pattyn / Mountains covered in snow, Chamonix, France, in winter of December 2011

David Pattyn / Dalmatian pelicans (Pelecanus crispus) group of three on water, Lake Kerkini, Greece, March

David Pattyn / Dalmatian pelican (Pelecanus crispus) abstract head portrait, Lake Kerkini, Greece, March

David Pattyn / Dalmatian pelican (Pelecanus crispus) resting on water in mist, Lake Kerkini, Greece, March

David Pattyn / Dalmatian pelicans (Pelecanus crispus) group on water in mist, Lake Kerkini, Greece, February

David Pattyn / Black-headed gull (Chroicocephalus ridibundus) in flight above Wadden sea, Terschelling Island, The Netherlands, June

David Pattyn / Red necked grebe (Podiceps grisegena) approaching a competitor in an attempt to drive him away during the courting season, Danube area, Bulgaria, April

David Pattyn / Roe deer (Capreolus capreolus) in a heather landscape in the snow, Kampina Nature reserve, The Netherlands, February

David Pattyn / Little egret (Egretta garzetta )attempting to catch fish, Camargue, France, July

David Pattyn / Grey heron (Ardea cinerea) foraging in a shallow lake on a misty morning alongside other herons, La Dombes lake area, France, June

David Pattyn / Little Egret (Egretta garzetta) in a hunting posture while stalking to catch small fish, La Dombes lake area, France, June

David Pattyn / Purple heron (Ardea purpurea) catching fish on a misty morning, La Dombes lake area, France, June

David Pattyn / Great Crested grebe (Podiceps cristatus) swimming in early morning light carrying chick on back, La Dombes area, France, July

David Pattyn / Common tern (Sterna hirundo) catching a fish, action shot, Camargue, France, July

David Pattyn / Red squirrel (Sciurus vulgaris) jumping, Oisterwijk, The Netherlands, sequence 2/6

David Pattyn / Red squirrel (Sciurus vulgaris) jumping, Oisterwijk, The Netherlands, sequence 4/6

David Pattyn / Sunrise with fog over heather landscape, Kampina Nature Reserve, Oisterwijk, The Netherlands, August 2007

David Pattyn / Springbok (Antidorcas marsupialis) in early morning sunlight, Kgalagadi Transfrontier Park, South Africa

David Pattyn / Bewick's swans (Cygnus bewickii) four in flight, Den Bosch, The Netherlands, January

David Pattyn / African lioness (Panthera leo) head portrait, Kgalagadi Transfrontier Park, South Africa

David Pattyn / Coot (Fulica atra) adult feeding its young, Valkenhorst Nature Reserve, Valkenswaard, the Netherlands, June

David Pattyn / Coot (Fulica atra) adult feeding its young, Valkenhorst Nature Reserve, Valkenswaard, the Netherlands, June

David Pattyn / Great crested grebe (Podiceps cristatus) adult with nesting material, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

David Pattyn / Mallard (Anas platyrhynchos) female with young chicks, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, May

David Pattyn / Tufted duck (Aythya fuligula) male drake , Valkenhorst Nature reserve, Valkenswaard, The Netherlands, May

David Pattyn / Tufted duck (Aythya fuligula) male and female, Valkenhorst Nature reserve, Valkenswaard, The Netherlands, May

David Pattyn / European pochard (Aythya ferina) drake male on a misty morning, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, May

David Pattyn / European pochard (Aythya ferina) female on a misty morning, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, May

David Pattyn / European pochard (Aythya ferina) male and female. Couple, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / European pochard (Aythya ferina) male / drake, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / Northern shoveler (Anas clypeata) drake / male, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / Great crested grebe (Podiceps cristatus) couple mating at the edge of a reedbed, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / Little grebe (Tachybaptus ruficollis) at the edge of a reedbed, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / Little grebe (Tachybaptus ruficollis) foraging at the edge of a reedbed, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / Little grebe (Tachybaptus ruficollis) couple mating in a reedbed, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April

David Pattyn / European pochard (Aythya ferina) male drake in flight, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, March

David Pattyn / Greylag goose (Anser anser) on a misty morning, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, March

David Pattyn / Great Cormorant (Phalocrocorax carbo) catching a Tench (Tinca tinca), Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, July

David Pattyn / Great crested grebe (Podiceps cristatus) portrait while foraging, Valkenhorst Nature reserve, the Netherlands, July

David Pattyn / Great crested grebe (Podiceps cristatus) young chick swallowing a fish, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, July

David Pattyn / European pochard (Aythya ferina) yound chick preening its feathers, Valkenhorst Nature Reserve, Valkenhorst, the Netherlands, July

David Pattyn / Great crested grebe (Podiceps cristatus) adult attacking one of its own young when it comes to beg for food, Valkenhorst Nature reserve, the Netherlands, June

David Pattyn / Great crested grebe (Podiceps cristatus) with young chick on its back, Valkenhorst Nature reserve, Valkenswaard, the Netherlands, June,

David Pattyn / Great crested grebe (Podiceps cristatus) with young chick trying to climb on the back of its parent, Valkenhorst Nature reserve, the Netherlands, June,

David Pattyn / Gadwall (Anas strepera), Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

David Pattyn / Little grebe (Tachybaptus ruficollis) in the early morning mist, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

David Pattyn / Great crested grebe (Podiceps cristatus) adult feeding its young with fish, Valkenhorst Nature reserve, the Netherlands, June

David Pattyn / Great crested grebe (Podiceps cristatus) adult with young on its back, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

David Pattyn / Great crested grebe (Podiceps cristatus) adult with young on its back, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

David Pattyn / Great crested grebe (Podiceps cristatus) adult with three young chicks on its back, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

David Pattyn / Tufted duck (Aythya fuligula) female, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

David Pattyn / Great crested grebe (Podiceps cristatus) adult, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

David Pattyn / Alpine ibex (Capra ibex) adult males fighting on a steep mountain side, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy, May

David Pattyn / Alpine ibex (Capra ibex) males sleeping, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy, May

David Pattyn / Alpine ibex (Capra ibex) young male on a steep rock, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy

David Pattyn / Alpine ibex (Capra ibex) young male on a steep rock, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy

David Pattyn / Alpine ibex (Capra ibex) , Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy

David Pattyn / Alpine Ibex (Capra ibex) males licking salt at the edge of a road, Valsavarenche, Gran Paradiso national park, Aosta Valley, Italy, May

David Pattyn / Alpine Ibex (Capra ibex) males licking salt at the edge of a road, Valsavarenche, Gran Paradiso national park, Aosta Valley, Italy, May

David Pattyn / Alpine Ibex (Capra ibex) males fighting on a steep slope, Valsavarenche, Gran Paradiso national park, Aosta Valley, Italy, May

David Pattyn / Alpine marmot (Marmota marmota) two males fighting, Gran Paradiso national park, aosta Valley, Italy, May

David Pattyn / Alpine ibex (Capra ibex) adult males in the hamlet of Pont in front of houses, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy, may

David Pattyn / Alpine ibex (Capra ibex) adult males fighting in alpine landscape, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy, May

David Pattyn / Alpine ibex (Capra ibex) adult males fighting in alpine landscape, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy, May

David Pattyn / Alpine ibex (Capra ibex) adult males fighting in alpine landscape, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy, May

David Pattyn / Bearded vulture (Gypaetus barbatus) in flight close to a vertical mountain side, Leukerbad, Vallais, Wallis, Switzerland, January

David Pattyn / Chamois (Rupicapra rupicapra) female and young struggling in deep snow on a mountain slope in its typical winter landscape after heavy snowfall in the area of a waterfall, Valsavarenche, Gran Paradiso...

David Pattyn / Chamois (Rupicapra rupicapra) adult and young running down in deep snow on a mountain slope in its typical winter landscape after heavy snowfall, Valsavarenche, Gran Paradiso National Park, Aosta Vall...

David Pattyn / Chamois (Rupicapra rupicapra) struggling in deep snow on a mountain slope in its typical winter landscape after heavy snowfall in the area of a waterfall, Valsavarenche, Gran Paradiso National Park, A...

David Pattyn / Alpine chough (Pyrrhocorax graculus) sitting on a lens of a wildlife photographer, Leukerbad, Vallais, Wallis, Switzerland, January

David Pattyn / Bearded vulture (Gypaetus barbatus) in flight over winter landscape with snow, Leukerbad, Vallais, Wallis, Switzerland, January

David Pattyn / Bearded vulture (Gypaetus barbatus) in flight in front of a rock wall, Leukerbad, Vallais, Wallis, Switzerland, January

David Pattyn / Bearded vulture (Gypaetus barbatus) in flight, Leukerbad, Vallais, Wallis, Switzerland, January

David Pattyn / Alpine accentor (Prunella collaris) in snow, Leukerbad, Vallais, Wallis, Switzerland, January

David Pattyn / Alpine ibex (Capra ibex) female beiing followed by male during mating season while beiing watched by one of her offspring, Valsavarenche valley, Gran Paradiso national Park, Aosta Valley, Alps, Italy,...

David Pattyn / Alpine ibex (Capra ibex) male silhouette, Valsavarenche valley, Gran Paradiso national Park, Aosta Valley, Alps, Italy, December