Juergen Freund / Spectacled flying fox (Pteropus conspicillatus) babies swaddled in cloth ready to sleep, Tolga Bat Hospital, Atherton, North Queensland, Australia. January 2008.
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Anup Shah / Two Cape / African Buffalo (Syncerus caffer) males fighting as a test of strength, Masai Mara National Reserve, Kenya. February
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Rolf Nussbaumer / RF- Green treefrog (Hyla cinerea) on yellow waterlily. Welder Wildlife Refuge, Sinton, Texas, USA. (This image may be licensed either as rights managed or royalty free.)
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Kim Taylor / Tokay gecko {Gecko gecko} eye showing pupil partially closed. Captive occurs Asia.
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Michael Durham / Blue and Yellow macaw portrait eye closed {Ara ararauna} captive - occurrs Central-America and South-America
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Wild Wonders of Europe / Muñoz / European pond turtle (Emys orbicularis) head portrait with eye closed, Campanarios de Azaba Biological Reserve, a rewilding Europe Area, Salamanca, Castilla y Leon, Spain
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Anup Shah / African Lion (Panthera leo) cub aged 1-2 months playing with its mother's tail, Masai Mara National Reserve, Kenya. March
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Ingo Arndt / Gliding Leaf Frog (Agalychnis spurrelli) eye closed with semi-transparent eyelid that allows it to see its surroundings even while resting, Costa Rica
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Ingo Arndt / Red-eyed Tree Frog (Agalychnis callidryas) eye closed with semi-transparent eyelid that allows it to see its surroundings even while resting, Costa Rica
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Jabruson / African Forest elephant (Loxodonta africana cyclotis) two bulls sparring, competition for access to valuable minerals located at certain points within the clearing's water points, Dzanga-Ndoki Nationa...
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LYNN M. STONE / Eastern Brown Pelican (Pelecanus occidentalis carolinensis) in breeding plumage, diving for fish prey; note the closed nictating membrane over eye at the moment of impact. Indian Rocks Beach, Florida,...
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Thomas Marent / Red-eyed Tree Frog (Agalychnis callidryas) with half closed eyelid, Tortuguero National Park, Costa Rica
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Edwin Giesbers / RF- Grey wolf (Canis lupus) interaction between two wolves, captive. (This image may be licensed either as rights managed or royalty free.)
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Fiona Rogers / Bonobo male baby 'Bomango' aged 10 months climbing a branch (Pan paniscus). Lola Ya Bonobo Santuary, Democratic Republic of Congo. Oct 2010.
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Christian Ziegler / Green-eyed Gecko (Gekko smithi) with pupil fully closed, Lambir Hills National Park, Sarawak, Malaysia
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Juergen Freund / RF- Pink anemonefish (Amphiprion perideraion) hiding among tentacles of closed anemone host. Kimbe Bay, West New Britain, Papua New Guinea. (This image may be licensed either as rights managed or roya...
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Mark Bowler / Red eyed tree frog (Agalychnis callidryas) showing two of its three eyelids, patterned eyelid completely closed over left eye Captive
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Mark Taylor / RF- Saint Bernard puppy, Vogue, asleep wearing a Father Christmas hat. (This image may be licensed either as rights managed or royalty free.)
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Rolf Nussbaumer / RF- Common Tree Frog (Hyla arborea) adult resting in wild rose bush. National Park Lake Neusiedl, Austria. April. (This image may be licensed either as rights managed or royalty free.)
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PREMAPHOTOS / Saturniid moth(Automeris bilinea) with front wings closed obscuring eye-spots on the hind-wings, in rainforest, Peru
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Piotr Naskrecki / Caecilian (Gymnophis multiplicata) a small bump or chemosensory tentacle sits where the eye should be, serves as a scent organ since their nostrils are closed while burrowing underground, Costa Rica
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Staffan Widstrand / RF- Europena grey wolf in snow (Canis lupus) released into wild. Toropets, Russia. (This image may be licensed either as rights managed or royalty free.)
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Staffan Widstrand / RF- Bengal tiger yawning (Panthera tigris tigris). Bandhavgarh National Park, India. (This image may be licensed either as rights managed or royalty free.)
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Kim Taylor / Tokay gecko {Gecko gecko} eye showing pupil closed. Captive, occurs SE Asia.
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Jeff Rotman / Eye of Tiger shark with nictating membrane half closed {Galeocerdo cuvieri} Red Sea
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Jeff Rotman / Eye of Caribbean reef shark {Carcharhinus perezi} Bahamas, nictating membrane closed
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Jeff Rotman / Eye of Caribbean reef shark nictating membrane closed {Carcharhinus perezi} Bahamas
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Jeff Rotman / Eye of Tiger shark with nictating membrane closed {Galeocerdo cuvieri} Red Sea
