Gabriel Rojo / Giant river otter (Pteronura brasiliensis) resting on fallen tree trunk above Cuiaba River. Pantanal, Mato Grosso, Brazil.
Eric Baccega / Western lowland gorilla (Gorilla gorilla gorilla) silverback male, portrait. Beauval Zoo Parc, France. Captive.
Andy Rouse / European red fox (Vulpes vulpes) cub in grassland close to den. UK. June.
Sven Zacek / Black Grouse (Tetrao tetrix) female at lek with male in background. Vorumaa, Southern Estonia. April.
Sven Zacek / Black grouse (Tetrao tetrix) female at lek with males displaying. Vorumaa, Southern Estonia. April.
David Fleetham / Blackside hawkfish (Paracirrhites forsteri) on Coral perch. Hawaii.
SCOTLAND: The Big Picture / Mountain hare (Lepus timidus) shaking raindrops from coat, in winter pelage, Scotland, UK, January.
Mark Taylor / Brindle-and-white Lurcher puppy, age 8 weeks, with crossed paws.
Mark Hamblin / RF - Goldfinch (Carduelis carduelis) perched on silver birch branch. Scotland, UK. May. (This image may be licensed either as rights managed or royalty free.)
LYNN M. STONE / RF - Male Golden retriever in Lupine and California poppies. Las Padres National Forest, Los Olivos, California, USA. (This image may be licensed either as rights managed or royalty free.)
Chris Mattison / RF - English Longhorn cow, Derbyshire, UK, July. (This image may be licensed either as rights managed or royalty free.)
Danny Green / RF- Goldfinch (Carduelis carduelis) perched on branch. Worcestershire, UK. January . (This image may be licensed either as rights managed or royalty free.)
SCOTLAND: The Big Picture / Highland cow in snow, Glenfeshie, Cairngorms National Park, Scotland, UK, February.
Eric Baccega / RF - Subadult Giant panda (Ailuropoda melanoleuca) climbing tree. Wolong Nature Reserve, Wenchuan, Sichuan Province, China. Captive. (This image may be licensed either as rights managed or royalty fre...
David Tipling / RF - King penguin (Aptenodytes patagonicus) feet on sand. Salisbury Plain, South Georgia. January. (This image may be licensed either as rights managed or royalty free.)
Sergey Gorshkov / RF - Leopard (Panthera pardus) mother with cubs, Londolozi Private Game Reserve, Sabi Sands Game Reserve, South Africa. (This image may be licensed either as rights managed or royalty free.)
Chris Mattison / RF - Head portrait of Western Spadefoot Toad (Pelobates cultripes) in the Algarve, Portugal. November. (This image may be licensed either as rights managed or royalty free.)
Klein & Hubert / Head portrait of domestic Charolais cow (Bos taurus) in autumn, France.
Edwin Giesbers / Imbabura treefrog (Hypsiboas picturatus) close up portrait, Colombia and Ecuador.
Alex Mustard / Stripehead dwarfgoby (Trimma striata) on a seafan (Melithaea sp.). Daram Islands, Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea, Pacific Ocean.
Mark Bowler / Forest dragonfly (Diastatops sp) on white background. Peru.
Loic Poidevin / Husky portrait, Hossa Finland.
Andy Rouse / RF- Bengal tiger (Panthera tigris tigris) female 'T19 Krishna' sitting, Ranthambore National Park, India. (This image may be licensed either as rights managed or royalty free.)
Yukihiro Fukuda / Feral domestic rabbit (Oryctolagus cuniculus) baby poking head out of burrow. Okunojima Island, also known as Rabbit Island, Hiroshima, Japan.
Wild Wonders of Europe / Widstrand / European bison (Bison bonasus), Drawsko Military area, Western Pomerania, Poland, February.
Alex Mustard / Close up portrait of female Lionfish (Pterois volitans) in the late afternoon, when Lionfish are more active. The Alternatives, Sha'ab Mahmood, Sinai, Egypt. Red Sea.
Michael D. Kern / Reticulated Python (Malayopython reticulatus) captive, occurs in South East Asia.
Daniel Heuclin / Amazonian horned frog (Ceratophrys cornuta) French Guiana. Taken in field studio with white background.
Oliver Scholey / Grey wolf (Canis lupus) portrait, Katmai National Park, Alaska, USA, August.
Anup Shah / Southern or Sunda Pig-tailed macaque (Macaca nemestrina) mature male standing portrait. Wild but used to being fed by local people. Gunung Leuser National Park, Sumatra, Indonesia.
Fiona Rogers / Long-tailed macaque (Macaca fascicularis) baby aged 2-4 weeks sitting on its mothers head walking through long grass. Bako National Park, Sarawak, Borneo, Malaysia. Apr 2010.
Andy Rouse / Mandarin Duck (Aix galericulata) male on lake, UK, April.
Lou Coetzer / African fish eagle (Haliaeetus vocifer) pair evading the aerial attack of a Long toed lapwing (Vanellus crassirostris) Chobe River, Botswana, October.
Michael Pitts / Sand tiger shark (Carcharias taurus) on the wreck of the 'Atlas', North Carolina, USA, September 2013.