Rolf Nussbaumer / Checkered Garter Snake (Thamnophis marcianus marcianus) coiled with tongue protruding. Fennessey Ranch, Refugio, Corpus Christi, Coastal Bend, Texas Coast, USA
01263280
Andy Rouse / Nile crocodile (Crocodylus niloticus) chasing Wildebeest (Connochaetes taurinus) during migration crossing, Masai Mara, Kenya, Africa
01266260
Alex Hyde / Light micrograph of pond water including single celled algae called desmids {Desmidiaceae sp}
01261121
Laurie Campbell / Bluebells (Hyacinthoides non-scripta) flowering in oakwood, Perthshire, Scotland, UK, May
01257645
Mark Bowler,Mark Bowler / Dead Houseflies {Musca domesticus} and Bluebottle flies {Calliphora vomitaria}, UK
01301263
Ingo Arndt / Blue Crab (Discoplax hirtipes) with claws raised in defensive / aggressive posture, endemic to Christmas Island, Indian Ocean, Australian Territory
01295589
Edwin Giesbers / Sea holly (Eryngium maritimum) growing in sand dune, Menorca, Balearic Islands, Spain, Europe
01315759
Alex Mustard / A lone Caribbean reef shark (Carcharhinus perezi) cruises over sand ripples. Walkers Cay, Northern Bahama Islands, Republic of Bahamas.
01259786
Stephen Dalton / Meadow grasshopper (Chorthippus parallelus) leaping, UK
01256882
David Shale / Deepsea octopus (Benthoctopus johnsoniana) Mid-Atlantic Ridge, North Atlantic Ocean
01296684
Nick Garbutt / Arctic tern (Sterna Paradisaea) hovering in flight over an iceberg.Peterman Island, Antarctic Peninsula, Antarctica. February.
01296702
Nick Garbutt / Stump-tailed Leaf Chameleon (Brookesia superciliaris) on white background, from rainforest leaf-litter. Masoala National Park, Madagascar.
01276443
Stephen Dalton / Oak tree {Quercus sp} seedling, UK
01276466
Stephen Dalton / Brown rat {Rattus norvegicus} backlit, night, controlled conditions, UK
01260894
Peter Cairns / Rock ptarmigan (Lagopus mutus) pair in winter plumage, Cairngorms NP, Grampian Mountains, Scotland, UK, February.
01257389
Mark Bowler / Isula / Bullet ant (Paraponera clavata) close-up showing mandibles, Peru
01012417
Tony Heald / Hippopotamus at water surface. Kruger NP, South Africa
01265165
Edwin Giesbers / Eastern green mamba {Dendroaspis angusticeps} strike pose, captive, from East Africa
01297859
Ann & Steve Toon / Roan antelope (Hippotragus equinus) with young offspring, Mlilwane nature reserve breeding programme, Swaziland, Southern Africa
01275238
Michel Poinsignon / Wind turbine with oil seed rape flowers in the foreground, Sarre, Germany
01275254
Michel Poinsignon / Green woodpecker {Picus viridis} male in flight, Lorraine, France
01257703
Mark Bowler / Line of Leaf-cutter ants (Atta sp) carrying leaves, digital composite
01292160
David Noton / Autumn colours of the Aspen trees (Populus tremula) in the snow, near Muleshoe, Bow Valley Parkway, Banff National Park, Alberta, Canada. October 2009
01241660
Ian McCarthy / Wandering albatross {Diomedea exulans} flying over open ocean, South Atlantic
01280845
Patricio Robles Gil / Common peafowl {Pavo cristatus} silhouetted male peacock perched in tree in early morning mist, Royal Chitwan NP, Nepal
01300933
Edwin Giesbers / Bluebells (Hyacinthoides non-scripta / Endymion scriptum) flowering in Beech wood, Hallerbos, Belgium, April
01294909
Richard Du Toit / Aerial view of herd of African buffalo (Syncerus caffer) on the move, Okavango delta, Botswana
01254249
Paul Hobson / Mute swan (Cygnus olor) looking out from between feathers, Dorset, UK
01253879
Mark Taylor / Silver tabby kitten with paws raised
01293011
Niall Benvie / Head portrait of Highland cow, Scotland, with tiny frond of bracken at corner of mouth, UK
Steven Kazlowski / Portrait of Polar bear (Ursus maritimus) sow standing with her cub on the snow in late winter, Arctic coast of Alaska
01254064
Mark Taylor / Ginger kitten with tail in the air
01263426
Steven Kazlowski / Polar bear (Ursus maritimus) looking into tundra buggy window, 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, October 2005
Jeff Rotman / Close-up of the eye of a Jewel Grouper / Coral hind (Cephalopholis Miniata) Red Sea, Egypt
01288232
Kristel Richard / Wild horse / mustang (Equus caballus) two young mustangs play-fighting in the Pryor Mountains, Wyoming, USA.
01313249
Steven Kazlowski / Polar bear (Ursus maritimus) head close-up portrait of an adult male, with snowflakes on fur, Barter Island, 1002 area of the Arctic National Wildlife Refuge, Alaska
01272795
David Tipling / King Penguin {Aptenodytes patagonicus} colony huddled together during storm, Right Whale Bay, South Georgia, November
01262546
Andy Rouse / Polar Bear (Ursus maritimus) about to enter water, Svalbard, Norway, September 2009. Image 01262546 is cropped from this frame
01257252
Mark Bowler,Mark Bowler / Red eyed tree frog (Agalychnis callidryas) walking, digital composite Captive
01316034
Alex Mustard / A split level digital composite showing a Basking shark (Ceterhinus maximus) feeding on plankton around St Michael's Mount, Cornwall, UK. June
Stephen Dalton / Leopard frog {Rana pipiens} diving into water, controlled conditions, from USA
01276355
Stephen Dalton / Ringneck / Java dove {Streptopelia roseogrisea} flight sequence, multiflash image, UK
01262894
Andy Rouse / Masai giraffe (Giraffa camelopardalis tippelski) showing long tongue, captive, Marwell Zoo, UK
01301353
Philippe Clement / Lightning during thunderstorm above petrochemical industry seen through magnifying glass held against illuminated globe of the earth~Digital composite
01272797
David Tipling / King Penguin {Aptenodytes patagonicus} colony huddled together during storm, Right Whale Bay, South Georgia, November