Edwin Giesbers / RF- Head portrait of Sumatran tiger (Panthera tigris sumatrae), captive. (This image may be licensed either as rights managed or royalty free.)
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Edwin Giesbers / Close up head profile portrait of Sumatran tiger (Panthera tigris sumatrae) captive
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Edwin Giesbers / Close up head portrait of Sumatran tiger (Panthera tigris sumatrae) captive
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Edwin Giesbers / Big close up of the eye of a Sumatran tiger (Panthera tigris sumatrae) captive
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Nick Gordon / Matis Indians sitting outside hut, Amazonia, Brazil. Facial decorations mimic jaguar markings.
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Gertrud & Helmut Denzau / Saddhu, religious wise man, with long beard and facial paint markings, India
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Nick Gordon / Matis Indian hunter, facial decorations to mimic jaguar, Javari valley, Amazonia Brazil
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Bernard Walton / Male Mandrill showing facial markings {Mandrillus sphinx} Gabon, Central Africa - captive
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Andy Trowbridge / Jewelled gecko (Naultinus gemmeus) resting on trunk of New Zealand fushia tree (Fuchsia excorticata) with tongue poking out, Banks Peninsula, Canterbury, South Island, New Zealand.
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Suzi Eszterhas / Leopard (Panthera pardus) female, hissing at vultures in sky above, Sabi Sands Game Reserve, South Africa.
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Andy Rouse / Bengal tiger (Panthera tigris tigris) male, head portrait, Ranthambhore, India. Endangered.
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Andy Rouse / RF - Bengal tiger (Panthera tigris tigris) male, standing on dusty path, Ranthambhore, India. Endangered. (This image may be licensed either as rights managed or royalty free.)
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Andy Rouse / RF - Bengal tiger (Panthera tigris tigris) male, standing on dusty path, Ranthambhore, India. Endangered. (This image may be licensed either as rights managed or royalty free.)
Joel Sartore / Photo Ark / Saban anole (Anolis sabanus) with mouth open, head portrait, Wroclaw Zoo. Captive, occurs in Saba, Caribbean Lesser Antilles.
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Joel Sartore / Photo Ark / Saban anole (Anolis sabanus) with mouth open, portrait, Wroclaw Zoo. Captive, occurs in Saba, Caribbean Lesser Antilles.
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Joel Sartore / Photo Ark / Peter's flap-necked chameleon (Chamaeleo dilepis petersii) with mouth open, head portrait, Gorongosa National Park, Mozambique. Captive.
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Joel Sartore / Photo Ark / Peter's flap-necked chameleon (Chamaeleo dilepis petersii) with mouth open, portrait, Gorongosa National Park, Mozambique. Captive.
Staffan Widstrand / Jaguar (Panthera onca) lying on river bank, Cuiaba River, Pantanal wetlands, Mato Grosso, Brazil.
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Daniel Nunez / Central American banded gecko (Coleonyx mitratus) with tongue poking out, portrait, Motagua Valley, Heloderma Natural Reserve, Zacapa, Guatemala. Cropped.
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Lucas Bustamante / Sri Lankan leopard (Panthera pardus kotiya) resting on tree branch, snarling, Yala National Park, Southern and Uva Provinces, Sri Lanka.
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Alex Mustard / Honeycomb moray (Gymnothorax favagineus) emerging from coral reef with mouth open, North Male Atoll, Maldives, Indian Ocean.
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Alex Mustard / Penpoint gunnel (Apodichthys flavidus) head portrait, Browning Pass, Vancouver Island, British Columbia, Canada, Pacific Ocean.
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Alex Mustard / Bluebarred parrotfish (Scarus ghobban) with tail fin missing, portrait, Ras Mohammed National Park, Sinai, Egypt, Red Sea.
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Alex Mustard / Honeycomb moray (Gymnothorax favagineus) with mouth open, emerging from a coral reef, with Undulated moray eel (Gymnothorax undulatus) behind, North Male Atoll, Maldives, Indian Ocean.
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Karine Aigner / Bengal tiger (Panthera tigris tigris) standing in dense foliage, Bardia National Park, Terai, Nepal. Endangered.
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Karine Aigner / Bengal tiger (Panthera tigris tigris) standing in river, snarling, Bardia National Park, Terai, Nepal. Endangered.
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David Tipling / Fallow deer (Dama dama) buck, calling during autumn rut, Norfolk, UK. September.
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David Tipling / Two Fallow deer (Dama dama) bucks, one calling during autumn rut, Norfolk, UK. September.
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Joel Sartore / Photo Ark / Southern Brazilian ocelot (Leopardus pardalis mitis) with mouth open, head portrait, Chilean National Zoo. Captive.
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Joel Sartore / Photo Ark / Southern Brazilian ocelot (Leopardus pardalis mitis) with mouth open, head portrait, Chilean National Zoo. Captive.
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Eric Baccega / Male Cheetah (Acinonyx jubatus) stretching and yawning on a fallen tree trunk, Okavango Delta, Botswana, Africa.
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Maxime Aliaga / Female Leopard (Panthera pardus) cub playing with its mother in the morning light, Masai Mara National Reserve, Kenya.
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Joel Sartore / Photo Ark / Two Asian leopard cats (Prionailurus bengalensis), kittens aged 4 weeks, sitting, portrait, Angkor Centre for Conservation of Biodiversity. Captive.
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Joel Sartore / Photo Ark / Asian leopard cat (Prionailurus bengalensis), kitten aged 4 weeks, sitting, portrait, Angkor Centre for Conservation of Biodiversity. Captive.
Joel Sartore / Photo Ark / Four Sumatran tiger (Panthera tigris sumatrae) cubs, snarling, Tierpark Berlin. Critically endangered. Captive.
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Joel Sartore / Photo Ark / Three Sumatran tiger (Panthera tigris sumatrae) cubs, snarling, Tierpark Berlin. Critically endangered. Captive.
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Joel Sartore / Photo Ark / Owston's palm civet (Chrotogale owstoni) with mouth open, portrait, Carnivore and Pangolin Conservation Center, Vietnam. Endangered. Captive.
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Doug Gimesy / Kangaroo Island kangaroo (Macropus fuliginosus fuliginosus) portrait,with rare facial markings. Kangaroo Island, South Australia, Australia. January, 2016
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Doug Gimesy / Kangaroo Island kangaroo (Macropus fuliginosus fuliginosus) with rare facial markings, portrait. Kangaroo Island, South Australia, Australia. January.