Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...
Jen Guyton / A Eurasian beaver (Castor fiber) chews on a stem just outside of its lodge in a pond in the Elbe River Bioshere Reserve, northern Germany.
Edwin Giesbers / Fire salamander (Salamandra salamandra) in forest habitat, Hallerbos, Belgium. May.
Simon Littlejohn / Mute swans (Cygnus olor) hissing and lunging at a European otter (Lutra lutra), River Stour, Dorset, England, UK, June.
Simon Littlejohn / Family of European otters (Lutra lutra) feeding and playing amongst Whitewater crowfoot (Ranunculus aquatilis) flowers, River Stour, Dorset, England, UK, June.
Simon Littlejohn / Close-up of a female European otter (Lutra lutra) and two juveniles feeding in a river, River Stour, Dorset, England, UK, June.
Simon Littlejohn / Female European otter (Lutra lutra) and two large pups playing and feeding in mid river, River Stour, Dorset, England, UK, June.
John Shaw / Osprey (Pandion haliaetus) landing at its nest in a Bald cypress tree (Taxodium distichum) draped with epiphytic Spanish moss (Tillandsia usneoides). Blue Cypress Lake, Florida, USA. April.
Tui De Roy / Alcedo giant tortoise (Chelonoidis vandenburghi), Alcedo Volcano, Isabela Island. This is where the largest extant population exists, acting as ecosystem engineers by maintaining open meadows and digg...
Edwin Giesbers / RF- Greater flamingo (Phoenicopterus roseus) flock silhouetted at sunset, Pont Du Gau Park, Camargue, France. (This image may be licensed either as rights managed or royalty free.)
Danny Green / European brown bear (Ursus arctos) reflected in forest pond in evening mist with gull in flight, Finland, June
SCOTLAND: The Big Picture / Grey heron (Ardea cinerea) hunting for food amongst moss with loch and Celtic rainforest in back ground, Scotland, UK, October..
Duncan Murrell / Rainforest and river outside the Batak village of Sitio Manggapin in Cleopatra's Needle Critical Habitat, Palawan, Philippines.
Nick Upton / Tilt shot of a dam constructed by Eurasian beavers (Castor fiber) on a section of the River Otter, Devon, England, UK, June 2018.
Kerstin Hinze / Dipper (Cinclus cinclus) foraging in a stream, Harz National Park, Saxony-Anhalt, Germany, March.
Andy Rouse / Jaguar (Panthera onca) on riverbank , Pantanal, Brazil
Eric Baccega / Coalition of two African male lions (Panthera leo) resting on the banks of the Luangwa river, dry season, South Luangwa National Park, Zambia
Klein & Hubert / Hippopotamus (Hippopotamus amphibius) silhouetted, walking to the Luangwa River at dawn, Luangwa National Park, Zambia
Philippe Clement / European dipper (Cinclus cinclus) perched on rock in stream and looking around, Luxembourg, April.
Oscar Dewhurst / Black-legged kittiwake (Rissa tridactyla) adult perched on the side of the Tyne Bridge, overlooking Newcastle and the Tyne. Newcastle, UK. July
Sandesh Kadur / Blue wildebeest (Connochaetes taurinus) crossing a river, Serengeti National Park, Tanzania.
Nick Garbutt / Red-and-green macaw (Ara chloropterus) flock flying in front of clay lick. Heath River, Tambopata / Bahuaja-Sonene Reserves, Amazonia, Peru / Bolivia border.
Yashpal Rathore / Kottigehar dancing frog (Micrixalus kottigeharensis) male calling and displaying to attract female by waving foot, Agumbe, Western Ghats, India.
Connor Stefanison / Common loon (Gavia immer) sits on her nest at sunset in the Cariboo region of British Columbia, Canada, taken with remote, May
Yashpal Rathore / Asiatic elephant (Elephas maximus), herd drinking water and crossing Mountain River at dawn, Jim Corbett National Park, India.
Andy Rouse / African Leopard (Panthera pardus) jumping across river
Maasai Mara, Kenya, Africa. August.
Andy Rouse / Great crested grebe (Podiceps cristatus) swimming, backlit with morning light forming a bokeh affect on the water, Wales, UK, February. Highly commended in the Habitat Category of the BWPA (British W...
Floris van Breugel / Barrel cacti (Ferocactus pilosus) and Ocotillo overlook Palm oasis at sunrise, Anza-Borrego Desert State Park, California, USA March
Andres M. Dominguez / European stonechat (Saxicola rubicola) male perched with mountainous habitat behind, Sierra de Grazalema Natural Park, southern Spain, February.
Eric Baccega / African elephant (Loxodonta africana) and black rhinoceros (Diceros bicornis) bathing at waterhole at night with moon, Okaukuejo, Etosha National Park, Namibia, Africa. Taken with infrared camera.
Alex Hyde / Raft Spider (Dolomedes fimbriatus) female on heathland pool. Note wing of predated damselfly floating on water's surface under the spider. Dorset, UK. August.
Wim van den Heever / African elephant (Loxodonta africana) drinking from water, Okavango Delta, Botswana.
Mark Bowler / Aerial view of Amazon River, with settlements and secondary rainforest, near Iquitos, Peru. July 2015.
Sven Zacek / Autumn trees on the Rapa River Delta, aerial view, Rapadalen Sarek National Park, Sweden, September 2009.
Pete Oxford / Chilean flamingo (Phoenicopterus chilensis) in Lago Azul with Torres del Paine, Torres del Paine National Park, Patagonia, Chile.
David Tipling / Common frogs (Rana temporaria) mating surrounded by spawn in pond, West Runton North Norfolk, England, UK, March.
David Tipling / Common frog (Rana temporaria) and spawn in pond. West Runton, North Norfolk, England, UK, March. Highly commended in the Habitat category of the BWPA Awards 2015.
Alex Hyde / Frogspawn from Common Frog (Rana temporaria), fisheye view showing pond habitat. Peak District National Park, Derbyshire, UK. March.
Jussi Murtosaari / Apollo butterfly (Parnassius apollo) in flight, Foglo, Ahvenanmaa / Aland Islands, Finland, July.
Denis-Huot / Aerial view of African elephants (Loxodonta africana) and African buffalo (Syncerus caffer) at a water hole during the dry season, Tsavo East National Park, Kenya. October.
Gabriel Rojo / Black caiman (Melanosuchus niger) on shore, Ibera Marshes, Corrientes Province, Argentina
Dong Lei / Purple bergenia (Bergenia purpurascens) in flower, Kawakarpo Mountain, Meri Snow Mountain National Park, Yunnan Province, China.
Floris van Breugel / Two Guanacos (Lama guanicoe) at edge of lake with Cuernos del Paine beyond. Torres del Paine National Park, Chile, June 2014.
Floris van Breugel / Black-billed shrike-tyrant (Agriornis montanus) in the snow with Mount Fitz Roy visible beyond. Patagonia, Argentina, June 2014.
Floris van Breugel / Black-billed shrike-tyrant (Agriornis montanus) perched in snowy tree with Mount Fitz Roy visible beyond. Patagonia, Argentina, June 2014.
Denis-Huot / Aerial view of Elephants (Loxodonta africana) at watering hole in the rainy season, Tsavo East National Park, Kenya.
Hougaard Malan / Berlin falls on a summer afternoon. Panorama route, Mpumalanga, South Africa. March 2013.
Hougaard Malan / Tugela falls surrounded by clouds on a misty morning. Royal Natal National Park, Drakensberg, South Africa. November 2010.