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  • The critically endangered Rothchild's Giraffe, Giraffa camelopardalis rothschildi, from Lake Nakuru, Kenya.
    1997-D.jpg
  • The critically endangered Rotchild Giraffe, Giraffa camelopardalis rotchildi, from Lake Nakuru, Kenya.
    1995-D.jpg
  • The endangered Assam roofed turtle (Pangshura sylhetensis) from the river Diphlu in Kaziranga, Assam, India.
    3534-D.jpg
  • The endangered Assam roofed turtle (Pangshura sylhetensis) from the river Diphlu in Kaziranga, Assam, India.
    3535-D.jpg
  • The critically endangered black rhino (Diceros bicornis) photographed in Maasai Mara, Kenya, in August 2013. This individual was killed by poachers a year after this photo was taken.
    55296-D.jpg
  • The endangered Geoffroy's spider monkey (Ateles geoffroyi) feeding on palm fruits at Bosque del Cabo, Osa Peninsula, Costa Rica.
    57225-D.jpg
  • The endangered Geoffroy's spider monkey (Ateles geoffroyi) feeding on palm fruits at Bosque del Cabo, Osa Peninsula, Costa Rica.
    57226-D.jpg
  • The endangered Geoffroy's spider monkey (Ateles geoffroyi) feeding on palm fruits at Bosque del Cabo, Osa Peninsula, Costa Rica.
    57224-D.jpg
  • Group of the critically endangered Rothchild Giraffe (Giraffa camelopardalis rothschildi) from Lake Nakuru, Kenya.
    56690-D.jpg
  • The critically endangered Rothchild Giraffe (Giraffa camelopardalis rothschildi) from Lake Nakuru, Kenya.
    56689-D.jpg
  • The endangered Assam roofed turtle (Pangshura sylhetensis) from the river Diphlu in Kaziranga, Assam, India.
    3927-D.jpg
  • The endangered Assam roofed turtle (Pangshura sylhetensis) from the river Diphlu in Kaziranga, Assam, India.
    3926-D.jpg
  • The mouth and teeth of the critically endangered Crested Black Macaque (Macaca nigra). Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    55834-D.jpg
  • The critically endangered Rothchild's Giraffe, Giraffa camelopardalis rothschildi, from Lake Nakuru, Kenya.
    1868-D.jpg
  • The endangered wild water buffaloes (Bulbalus arnee) swimming in Kaziranga National Park, Assam, India.
    55676-D.jpg
  • The endangered Asiatic wild dog (Cuon alpinus) from Tadoba NP, India.
    55708-D.jpg
  • Pair of the endangered Asiatic wild dog (Cuon alpinus) from Tadoba NP, India.
    55710-D.jpg
  • The endangered Asiatic wild dog (Cuon alpinus) from Tadoba NP, India.
    55711-D.jpg
  • The critical endangered great green macaw (Ara ambiguus) alanding in tree tops at Boca Tapada,  Costa Rica.
    45627-D.jpg
  • The endangered Assam roofed turtle (Pangshura sylhetensis) from the river Diphlu in Kaziranga, Assam, India.
    3532-D.jpg
  • The endangered Assam roofed turtle (Pangshura sylhetensis) from the river Diphlu in Kaziranga, Assam, India.
    3533-D.jpg
  • The critically endangered Rothchild Giraffe (Giraffa camelopardalis rothschildi) from Lake Nakuru, Kenya.
    56688-D.jpg
  • Black-faced spoonbill (Platalea minor) from Amami oshima, Ryukyu Islands, southern Japan.
    45640-D.jpg
  • Black-faced spoonbill (Platalea minor) from Amami oshima, Ryukyu Islands, southern Japan.
    45641-D.jpg
  • Black-faced spoonbills (Platalea minor) feeding. Photo from Amami oshima, Ryukyu Islands, southern Japan.
    45644-D.jpg
  • Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, North Sulawesi, Indonesia.
    57138-D.jpg
  • Blakiston's fish owl (Ketupa blakistoni) with prey. Photo from Hokkaido, Japan.
    45486-D.jpg
  • Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56119-D.jpg
  • Crested Black Macaques (Macaca nigra)  with baby nursing the mother. Photo from Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56115-D.jpg
  • Common Chimpanzee (Pan troglodytes) in Ol Pejeta Conservancy, Kenya.
    55852-D.jpg
  • Common Chimpanzees (Pan troglodytes) in Ol Pejeta Conservancy, Kenya.
    55847-D.jpg
  • Lelwel hartebeest (Alcelaphus buselaphus lelwel) from Sweetwaters, Kenya.
    55839-D.jpg
  • Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    55831-D.jpg
  • Bwindi, Uganda.  Nikon D300, 24-70mm @ 48mm (72mm in full frame), f4, EV-0.33, 1/320sec, ISO400, Aperture priority
    Mountain Gorilla (55191-D).jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    55192-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    55194-D.jpg
  • Grevy's Zebra, Equus grevyi, from Samburu National Reserve, Kenya.
    1878-D.jpg
  • Black-faced spoonbill (Platalea minor) from Amami oshima, Ryukyu Islands, southern Japan.
    45643-D.jpg
  • Black-faced spoonbills (Platalea minor) from Amami oshima, Ryukyu Islands, southern Japan.
    45642-D.jpg
  • Two large chickens of the great green macaw (Ara ambiguus) at their nesting burrow in the Atlantic slopes, Costa Rica.
    45581-D.jpg
  • Boca Tapada, Costa Rica. Nikon D500, 600mm (900mm in full frame), f4, 1/1000sec, ISO180, Manuel modus.
    Green Macaws in Nest (45581-D).jpg
  • Two large chickens of the great green macaw (Ara ambiguus) at their nesting burrow in the Atlantic slopes, Costa Rica.
    45580-D.jpg
  • Two large chickens of the great green macaw (Ara ambiguus) at their nesting burrow in the Atlantic slopes, Costa Rica.
    45578-D.jpg
  • Two large chickens of the great green macaw (Ara ambiguus) at their nesting burrow in the Atlantic slopes, Costa Rica.
    45579-D.jpg
  • Crested Black Macaques (Macaca nigra)  grooming in Tangkoko Nature Reserve, North Sulawesi, Indonesia.
    57141-D.jpg
  • Crested Black Macaques (Macaca nigra) grooming in Tangkoko Nature Reserve, North Sulawesi, Indonesia.
    57140-D.jpg
  • Crested Black Macaque (Macaca nigra)  in Tangkoko Nature Reserve, North Sulawesi, Indonesia.
    57137-D.jpg
  • Crested Black Macaques (Macaca nigra)  on the beach of  Tangkoko Nature Reserve, North Sulawesi, Indonesia.
    57122-D.jpg
  • Tangkoko Nature Reserve, North Sulawesi, Indonesia. Nikon D850, 300mm f2.8, EV+1.67, 1/160sec, ISO4000, Manual
    Black Macaque (56122-D).jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    56646-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    56649-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    56647-D.jpg
  • Crested Black Macaque (Macaca nigra) getting it's fur cleaned by a fellow monkey. Photo from Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56118-D.jpg
  • Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56117-D.jpg
  • Crested Black Macaques (Macaca nigra)  feeding on coconut in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56116-D.jpg
  • Common Chimpanzee (Pan troglodytes) in Ol Pejeta Conservancy, Kenya.
    55853-D.jpg
  • Common Chimpanzee (Pan troglodytes) in Ol Pejeta Conservancy, Kenya.
    55850-D.jpg
  • Common Chimpanzee (Pan troglodytes) in Ol Pejeta Conservancy, Kenya.
    55849-D.jpg
  • Common Chimpanzee (Pan troglodytes) in Ol Pejeta Conservancy, Kenya.
    55848-D.jpg
  • Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    55833-D.jpg
  • Crested Black macaques (Macaca nigra) feeding from fruits and seeds on the dark forest floor in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    55830-D.jpg
  • Close up of the Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    55835-D.jpg
  • Tangkoko Nature Reserve, North Sulawesi, Indonesia. Nikon D850, 70-200mm @ 125mm, f4, 1/160sec, ISO2000, SB900 fill-in flash, Aperture priority
    Before the dawn of Man (55830-D).jpg
  • Bwindi, Uganda. Nikon D700, 200-400mm @ 400mm, f4, EV-0.67, 1/200sec, ISO1000, Aperture priority
    Bakwate (55193-D).jpg
  • Capped langur (Trachypithecus pileatus) from Kaziranga NP, Assam, India.
    55719-D.jpg
  • Capped langur (Trachypithecus pileatus) from Kaziranga NP, Assam, India.
    55720-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    55199-D.jpg
  • Face of Silverback Mountain Gorilla "Bakwate" (Gorilla berengei berengei) from the Oruzogo family in Bwindi Impenetrable National Park, Uganda.
    55200-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) resting in its natural habitat in the forest of Bwindi Impenetrable National Park, Uganda.
    55191-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) hiding in the dense forest of Bwindi Impenetrable National Park, Uganda.
    55193-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    55190-D.jpg
  • Grevy's Zebra, Equus grevyi, from Samburu National Reserve, Kenya.
    1876-D.jpg
  • Gaur (Bos gaurus) from Tadoba NP, India.
    55715-D.jpg
  • Gaur (Bos gaurus) from Tadoba NP, India.
    55714-D.jpg
  • Indian hog deer (Hyelaphus porcinus) in a field of flowers. Kaziranga NP, Assam, India.
    55702-D.jpg
  • Baby crested Black Macaque (Macaca nigra) suckle its mother in Tangkoko Nature Reserve, North Sulawesi, Indonesia.
    57142-D.jpg
  • Juvenile cested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, North Sulawesi, Indonesia.
    57139-D.jpg
  • Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, North Sulawesi, Indonesia.
    57136-D.jpg
  • Crested Black Macaques. Tangkoko Nature Reserve, North Sulawesi, Indonesia. Nikon D850, 70-200mm @ 200mm, f2.8, 1/200sec, ISO3200, Manual modus.
    Black Macacues (57136-D).jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    56648-D.jpg
  • Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56122-D.jpg
  • Crested Black Macaques (Macaca nigra)  resting on the forest floor in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56121-D.jpg
  • Portrait of Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56120-D.jpg
  • Crested Black Macaques (Macaca nigra) resting at a fig tree (Ficus variegata) in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    56114-D.jpg
  • Common Chimpanzee (Pan troglodytes) in Ol Pejeta Conservancy, Kenya.
    55851-D.jpg
  • Lelwel hartebeest (Alcelaphus buselaphus lelwel) from Sweetwaters, Kenya.
    55840-D.jpg
  • Lelwel hartebeest (Alcelaphus buselaphus lelwel) from Sweetwaters, Kenya.
    55841-D.jpg
  • Crested Black Macaque (Macaca nigra) feeding. Tangkoko Reserve, northern Sulawesi, Indonesia.
    55829-D.jpg
  • Kaziranga National Park, Assam, India.  Nikon D4, Sigma 150-600mm @ 400mm, f6, EV+1, 1/640sec, ISO200, Aperture priority
    Indian buffalos (55676-D).jpg
  • Can you spot the Gorilla in the impenetrable forest of Bwindi, Uganda?
    55196-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) from Bwindi Impenetrable National Park, Uganda.
    55198-D.jpg
  • Mountain Gorilla (Gorilla berengei berengei) feeding on liana in Bwindi Impenetrable National Park, Uganda.
    55197-D.jpg
  • Gorilla hand in Bwindi Impenetrable forest.
    55195-D.jpg
  • Gaur (Bos gaurus) in the forest of Tadoba NP, India.
    55718-D.jpg
  • Gaur (Bos gaurus) from Tadoba NP, India.
    55717-D.jpg
  • Gaur (Bos gaurus). Angry bull from Tadoba NP, India.
    55716-D.jpg
  • Crested Black Macaques (Macaca nigra)  in Tangkoko Nature Reserve, northern Sulawesi, Indonesia.
    55832-D.jpg
  • The critically endangered diademed sifaka (Propithecus diadema) feeding in the canopy of Anamazaotra Nature Reserve, Madagascar.
    55991-D.jpg
  • The critically endangered black-and-white ruffed lemur (Varecia variegata) feeding high in the canopy of Andasibe NP, Madagascar.
    55983-D.jpg
  • The endangered Asiatic wild dog (Cuon alpinus) takes a swim. Photo from Nagarahole NP, southern India.
    57160-D.jpg
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Alf J. Nilsen Natural History images

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