Chien Lee / Minden / Magnificent Bird-of-paradise (Cicinnurus magnificus) male at lek, Arfak Mountains, West Papua, Indonesia
70580416
Chien Lee / Minden / Stick Insect (Monticomorpha flavolimbata) pair mating in mountains, Bengoh Range, Ecuador
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Mark Raycroft / Minden / White-tailed Deer (Odocoileus virginianus) buck in snowfall, North America
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Donald M. Jones / Minden / Bighorn Sheep (Ovis canadensis) ram, western Canada
70007809
Jan Wegener / Common Nighthawk (Chordeiles minor) male in display flight, Winnie, Texas
01696982
Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) aggressive mating behaviour (wrestling, biting) male eventually moves away, Yarra Bend Park, Victoria, Australia, April.
01696981
Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) male involved in courtship / mating behaviour including licking female's genitalia; male grooming his own penis, bickering and female climbing away, Yar...
01696924
Neil Challis / Giant golden orb weaver spider (Nephila pilipes) focus pull from a small male to much larger female in the background, Western Thailand.
01696249
Marie Read / Ruby-throated hummingbird (Archilochus colubris) male flies in to feed on nectar from Eastern red columbine flower (Aquilegia canadensis), Freeville, New York, USA, June.
01696243
Marie Read / Eastern bluebird (Sialia sialis) male feeding on Winterberries (Ilex verticillata) before flying off, Freeville, New York, USA, January.
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Lukas Schaefer / Alpine ibex (Capra ibex) male walking up a mountain in the snow, Gran Paradiso, Italy, December.
01694313
Vishal Jadhav / Red-breasted flycatcher (Ficedula parva) male hunting flying insects from a rock, Maharashtra, India, February.
01694308
Vishal Jadhav / Great hornbill (Buceros bicornis) pair performing courtship feeding ritual, passing berry from beak to beak, then female eats berry, Maharashtra, India, February.
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Joel Sartore / Photo Ark / Himalayan monal pheasant (Lophophorus impejanus) male looking around, Pheasant Heaven. Captive.
01693652
Vishal Jadhav / Indian jackal (Canis aureus indicus) female grooming male's head, Maharashtra, India, September.
01693007
Noemie Stroh / Green turtles (Chelonia mydas) mating on coral reef, Rocky Island, Red Sea, Egypt, June.
01692992
Vishal Jadhav / Spotted owlet (Athene brama) female looking out of nest in rocks, males appears then flies off, Maharashtra, India, January.
01692176
Oscar Dewhurst / Mandarin duck (Aix galericulata) drake swimming on pond, backlit by rising sun and bokeh effect, Richmond Park, London, UK. February.
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David Pattyn / Pair of Great crested grebes (Podiceps cristatus) performing courtship dance, The Netherlands, Europe. March.
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David Pattyn / Pair of Great crested grebes (Podiceps cristatus) courtship dance display, The Netherlands, Europe. March.
01691023
Brian Bevan / Yellowhammer (Emberiza citronella) male singing from bramble then flies away, Bedfordshire, UK, June.
01690999
Brian Bevan / Common Kingfisher (Alcedo atthis) male dives then catches loach fish, Bedfordshire, UK, April.
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Brian Bevan / Common Kingfisher (Alcedo atthis) male fishing from blackthorn branch, catches then eats fish, Bedfordshire, UK, April.
01690980
Brian Bevan / Great crested grebe (Podiceps cristatus) courtship weed dance, Bedfordshire, UK, April.
01690850
Eric Baccega / Male Chimpanzee (Pan troglodytes troglodytes) trying to catch fallen fruits using stick as a tool, Conkouati-Douli National Park, Republic of Congo, Africa.
01690430
Will Burrard-Lucas / Leopard (Panthera pardus) male on moonlit night, Laikipia, Kenya. Taken using camera trap with a long exposure time to expose the stars and a flash to expose the foreground, creating a ghostly effect....
Michael W. Richards / Little owl (Athene noctua) pair perched on beam inside barn, mutual preening before one adult flies away, Brompton Ralph, Somerset, UK, February.
01685488
Uri Golman / Close up of a silverback Mountain gorilla (Gorilla beringei beringei) face with eyes closed, and hand / fingers, Virunga National Park, Democratic Republic of Congo.
01685193
Klein & Hubert / Male Cheetah (Acinonyx jubatus) sitting in high grass in shade of acacia tree in savanna, Kenya, Africa.
01683722
Kim Taylor / Male Cockchafer beetle (Melolontha melolontha) unfolding its wings before taking off to fly away, Surrey, UK, May.
01683624
Richard Hopkins / Female European otter (Lutra lutra) looking directly at camera as her male cub suckles before she turns away from him; he pesters her to feed him again. Shetland, UK, September.
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Ben Cranke / Southern elephant seals (Mirounga leonina) subadult males practice sparring. St Andrew's Bay, South Georgia Island
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Ben Cranke / King penguins (Aptenodytes patagonicus) congregate on the beach, seeking a safe point to go into the sea, with male Southern elephant seals (Mirounga leonina) blocking their path. St Andrew's Bay,...
01680827
Jack Dykinga / Burrowing owls (Athene cunicularia) pair mating, Marana farming complex, Arizona, USA. April.
01680824
Jack Dykinga / Burrowing owls (Athene cunicularia) pair mating, Marana farming complex, Arizona, USA. April.
01680314
Robert Thompson / African golden emperor moth (Gonimbrasia krucki), close up of male head , Kenya, Africa Controlled conditions.
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Jack Dykinga / Burrowing owls (Athene cunicularia) pair mating, Marana farming complex, Arizona, USA. April.
01678673
Alex Hyde / Common Orb Weaver (Metellina sp.) male. With the camera at a very precise angle to the sun, the silk of the web refracted the light into a rainbow of coloured bands.
01678451
Carlos Zorrilla / Male Andean cock-of-the-rock (Rupicola peruvianus) displaying at lek in tree, Ecuador
01678442
Carlos Zorrilla / Male Orchid bee (Euglossini sp.) on an orchid (Lycomormium ecuadorense) flower trying to remove pollinia attached to its back, Ecuador, April.
01676729
Rose Summers / Red deer (Cervus elaphus) doe cleaning the face of its young before yawning, Richmond Park, London, England, UK, October.
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Markus Varesvuo / Two male Black grouse (Tetrao / Lyrurus tetrix) fighting at lek. Utajarvi, Finland, April.
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Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) female and male on red volcanic beach, Rabida Island, Galapagos, Ecuador
01675942
Claudio Contreras / Guadalupe fur seal (Arctocephalus townsendi) male fighting, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, April
01674979
Jeff Foott / Gorilla (Gorilla beringei beringei) sub adult male feeding on vegetation, close up. Volcanoes National Park, Rwanda, Africa.
01673795
Brian Bevan / Male Kingfisher (Alcedo atthis) landing on branch after capturing fish then uses perch to stun prey before flying away, Bedfordshire, UK, July.
01671980
George Sanker / Elk (Cervus canadensis) bull and cow sniffing noses, Yellowstone National Park, Wyoming, USA. September.
