Neil Challis / Asian water monitor (Varanus salvator) swimming through lake, early morning, Western Thailand.
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Neil Challis / Asian water monitor (Varanus salvator) emerging from water, then crossing land, before swimming away, Western Thailand.
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Etienne Littlefair / Mertens' water monitor (Varanus mertensi) in water, split level view, Adelaide River, Northern Territory, Australia. October. Winner of the threatened species criteria in Australia Geographic Natu...
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Nick Garbutt / Komodo dragon (Varanus komodoensis) male running. Rinca Island, Komodo National Park, Indonesia. Endangered.
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Robert Valentic / Heath Monitor (Varanus rosenbergi) male enacting a threat display, in mallee/heath habitat near Pinnaroo, South Australia.
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David Gallan / Lace monitor (Varanus varius) sensing with tongue, New South Wales, Australia, December.
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Steven David Miller / A Perentie (Varanus giganteus) using its forked tongue to detect smells, Alice Springs Reptile Centre, Northern Territory, Australia, Captive. May.
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Sandesh Kadur / Bengal monitor (Varanus bengalensis) smelling a stone with its tongue, Ranthambore National Park, Rajasthan, India. 2016.
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Sandesh Kadur / Two Bengal monitors (Varanus bengalensis) fighting, Ranthambore National Park, Rajasthan, India. 2016.
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Mark MacEwen / Komodo dragon (Varanus komodoensis) with tongue on out beach, Komodo National Park, the islands of Komodo, Indonesia. Vulnerable species.
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Mark MacEwen / Komodo dragon (Varanus komodoensis) walking with tongue extended on beach, found in the islands of Komodo, Indonesia. Vulnerable species.
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Mark MacEwen / Komodo dragon (Varanus komodoensis) with tongue extended on beach, Komodo National Park, Indonesia. Vulnerable species.
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Bruno D'Amicis / Desert monitor (Varanus griseus) moving across sand dunes, showing characteristic tracks, in the Sahara, Tunisia.
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Cyril Ruoso / Komodo dragon (Varanus komodoensis) scavenging on another Komodo dragon, Rinca Island, Komodo National Park, Indonesia. Non-ex
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Cyril Ruoso / Komodo dragon (Varanus komodoensis) in habitat with boat, Rinca Island, Komodo National Park, Indonesia. Non-ex
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Cyril Ruoso / View of Komdodo dragon (Varanus komodoensis) from nest, Rinca Island, Komodo National Park, Indonesia. Non-ex
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Cyril Ruoso / Komodo dragons (Varanus komodoensis) scavenging Water buffalo carcass. Rinca Island, Komodo National Park, Indonesia.
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Chris Mattison / Green tree monitor (Varanus prasinus) with tongue extended, captive from SE Asia.
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Daniel Heuclin / Timor monitor (Varanus timorensis) captive, from Timor
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Georgette Douwma / Komodo dragons (Varanus komodoensis) on beach, Rinca, Komodo National Park, Indonesia, October
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Cyril Ruoso / Komodo Dragon (Varanus komodoensis) drooling, the lizard's saliva is high in bacteria and bites quickly become infected, Rinca Island, Komodo National Park, Indonesia
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Suzi Eszterhas / Komodo Dragon (Varanus komodoensis) pair flicking tongues, Komodo National Park, Indonesia
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Chien Lee / Komodo Dragon (Varanus komodoensis) in grass, Nusa Tenggara, Indonesia
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Mark Jones / Komodo Dragon (Varanus komodoensis) large male testing ground for scent with specialized forked tongue, Komodo National Park, Komodo Island, Indonesia
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Tui De Roy / Komodo Dragon (Varanus komodoensis) large male walking towards camera, Komodo National Park, Komodo Island, Indonesia
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Stephen Belcher / Komodo Dragon (Varanus komodoensis) with tongue extended, Komodo Island, Komodo National Park, Indonesia
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Stephen Belcher / Komodo Dragon (Varanus komodoensis) standing on hind legs with mouth open in defensive display, Rinca Island, Komodo National Park, Indonesia
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Stephen Belcher / Komodo Dragon (Varanus komodoensis) standing in the sea with tongue extended, Komodo Island, Komodo National Park, Indonesia
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Neil Challis / Asian water monitor (Varanus salvator) swimming along the edge of a lake, Western Thailand.
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Joel Sartore / Photo Ark / Yellow-headed water monitor (Varanus cumingi) walking through frame from above, Wroclaw Zoo. Captive.
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Joel Sartore / Photo Ark / Black-throated monitor (Varanus albigularis microstictus) male walking out of frame, Cub Creek Science Camp. Captive.
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Joel Sartore / Photo Ark / Black-throated monitor (Varanus albigularis microstictus) male close up head shot, Cub Creek Science Camp. Captive.
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Bernard Castelein / Pair of Nile monitors (Varanus niloticus) mating, Allahein river, The Gambia.
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Bernard Castelein / Nile monitor (Varanus niloticus) juvenile, resting on a dead tree stump, Allahein river, The Gambia.
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Bernard Castelein / Nile monitor (Varanus niloticus) juvenile, climbing along a tree branch, Allahein river, The Gambia.
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Bernard Castelein / Nile monitor (Varanus niloticus) juvenile, climbing along a tree branch, Allahein river, The Gambia.
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Bernard Castelein / Nile monitor (Varanus niloticus) juvenile, resting on a tree stump, Allahein river, the Gambia
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Eric Baccega / Nile monitor lizard (Varanus niloticus) on forest floor, Conkouati-Douli National Park, Republic of Congo, Africa.
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Eric Baccega / Nile monitor lizard (Varanus niloticus) with tongue sticking out, Conkouati-Douli National Park, Republic of Congo, Africa.
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Eric Baccega / Nile monitor lizard (Varanus niloticus) on forest floor, Conkouati-Douli National Park, Republic of Congo, Africa.
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Bruce Thomson / Sand goanna / Gould's goanna (Varanus gouldii) feeding on a turtle egg after digging up nest, Dalby, Queensland, Australia.
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Bruce Thomson / Yellow-spotted monitor / Goanna (Varanus panoptes) hunting during the day, Cape York, Queensland, Australia.
