Mary McDonald / Hanuman Langur / Northern Plains Grey Langur (Semnopithecus entellus) in leafless tree top. Kanha National Park, Madhya Pradesh, India.
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Niall Benvie / A pair of Ravens (Corvus corax) perched in bleached out pine tree, Estonia, March 2008
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Stephen Dalton / Hedgesparrow / Dunnock (Prunella modularis)feeding European cuckoo (Cuculus canorus) in oak tree, UK
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Patricio Robles Gil / Silhouette of young Gelada baboons (Theropitecus gelada) playing in tree at dawn, Simien Mountains NP, Ethiopia
Pete Oxford / Leaffrogs in tropical rainforest, Yasuni NP, Ecuador (Agalychnis craspedopus) South America
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Staffan Widstrand / RF- Greater Kudu (Tragelaphus strepsiceros) male portrait with oxpecker birds on back, St Lucia wetlands National Park, South Africa. (This image may be licensed either as rights managed or royalty fr...
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Suzi Eszterhas / Orangutan (Pongo pygmaeus) two year old infants playing in tree, Orangutan Care Center, Borneo, Indonesia
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Richard Du Toit / Troop of Vervet Monkey (Chlorocebus / Cercopithecus aethiops) gathered in a tree, Kruger NP, South Africa
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Nick Garbutt / RF- Madagascar tree / Leaf litter frog (Boophis madagascariensis) at night. Andasibe-Mantadia National Park, Eastern Madagascar. (This image may be licensed either as rights managed or royalty free.)
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Dietmar Nill / Two Lynx (Lynx lynx) juveniles on a tree branch, Germany, captive
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Dietmar Nill / Two Common Tree Frogs (Hyla arborea), climbing on autumn leaves, Brandenburg, Germany
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Pete Oxford / Two Treefrogs facing one another (Agalychinis craspedopus) Ecuadorian Amazon, Ecuador, South America
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Anup Shah / Two Chimpanzee juveniles playing in tree (Pan troglodytes) orphans at Sweetwater Sanctuary, Kenya, Africa
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Hermann Brehm / Scarlet macaws {Ara macao} feeding in rainforest canopy, Tambopata Reserve, Peru, South America
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Pete Oxford / Tree frogs {Hyla lindae} Western Ecuador, South America, Captive.
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Anup Shah / Juvenile orang utans (Pongo abelii) playing in tree Gunung Leuser NP Sumatra Indonesia
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Anup Shah / Juvenile orang utans (Pongo abelii) playing in tree Gunung Leuser NP Sumatra Indonesia
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Rolf Nussbaumer / RF- Mexican treefrog (Smilisca baudinii) on Spanish moss. Texas, USA. (This image may be licensed either as rights managed or royalty free.)
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Pete Oxford / Five-striped palm squirrels {Funambulus pennanti} two in tree, Bandhavgarh NP, India
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Staffan Widstrand / Koala bears feeding in tree {Phascolarctos cinereus} captive Australia
