Ingo Arndt / Close up of pelvic spur of Malagasy tree boa (Sanzinia madagascariensis) the vestigial remains of the snake's legs. Endemic to Madagascar.
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Nick Garbutt / Madagascar Tree Boa (Sanzinia madagascariensis) coiled in forest understorey. Montane rainforest, Marojejy National Park, north east Madagascar.
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Nick Garbutt / Madagascar Tree Boa (Sanzinia madagascariensis) coiled in forest understorey. Montane rainforest, Marojejy National Park, north east Madagascar.
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Nick Garbutt / Madagascar Tree Boa (Sanzinia madagascariensis) in montane rainforest undergrowth, amidst swirling mist and low cloud. Marojejy National Park, north east Madagascar.
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Nick Garbutt / Madagascar Tree Boa (Sanzinia madagascariensis) coiled in forest understorey. Montane rainforest, Marojejy National Park, north east Madagascar.
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Daniel Heuclin / Madagascar tree boa (Sanzinia madagascariensis) wrapped around branch, captive, occurs in Madagascar
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Enrique Lopez-Tapia / Man holding Madagascar boa (Sanzinia madagascariensis) Ranomafana National Park, Madagascar.
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Enrique Lopez-Tapia / Man holding Madagascar boa (Sanzinia madagascariensis) Ranomafana National Park, Madagascar.
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Enrique Lopez-Tapia / Madagascar boa (Sanzinia madagascariensis) Ranomafana National Park, Madagascar.
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Enrique Lopez-Tapia / Madagascar boa (Sanzinia madagascariensis) Ranomafana National Park, Madagascar.
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Enrique Lopez-Tapia / Madagascar boa (Sanzinia madagascariensis) with eyes glazed prior to moulting, Ranomafana National Park, Madagascar.
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Enrique Lopez-Tapia / Madagascar boa (Sanzinia madagascariensis) with eyes glazed prior to moulting, Ranomafana National Park, Madagascar.
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Tim Fitzharris / Madagascar Tree Boa (Boa manditra) juvenile, Costa Rica
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Lorraine Bennery / Malagasy tree boa (Sanzinia madagascariensis) in leaf litter, Andasibe Mantadia National Park, Madagascar.