Paul Hobson / Fer-de-lance (Bothrops asper) snake resting on wood on forest floor. Costa Rica.
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Jen Guyton / Fer-de-lance (Bothrops asper) hatchling on a blade of grass in a swamp, La Selva Biological Station, Costa Rica.
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Jen Guyton / Fer-de-lance (Bothrops asper) hatchling on a blade of grass in a swamp, La Selva Biological Station, Costa Rica
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Nick Hawkins / Fer-de-lance snake (Bothrops asper) in the lowland rainforests of Southeastern Nicaragua. August.
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Nick Hawkins / Fer-de-lance snake ( Bothrops asper) in the lowland rainforests of Southeastern Nicaragua. August.
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Alex Hyde / Fer-de-lance (Bothrops asper) camouflaged on the rainforest floor. Corcovado National Park, Osa Peninsula, Costa Rica
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Alex Hyde / Fer-de-lance (Bothrops asper) camouflaged on the rainforest floor, Corcovado National Park, Osa Peninsula, Costa Rica
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Alex Hyde / Fer-de-lance (Bothrops asper) camouflaged on the rainforest floor, Corcovado National Park, Osa Peninsula, Costa Rica
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Alex Hyde / Fer-de-lance (Bothrops asper) camouflaged on the rainforest floor, Corcovado National Park, Osa Peninsula, Costa Rica
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Alex Hyde / Fer-de-lance (Bothrops asper) juvenile camouflaged on the rainforest floor at the base of a Strangle fig (Ficus sp) Osa Peninsula, Costa Rica,
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Alex Hyde / RF - Fer-de-lance (Bothrops asper) camouflaged on rainforest floor. Corcovado National Park, Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)
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Alex Hyde / RF - Fer-de-lance (Bothrops asper) camouflaged on rainforest floor. Corcovado National Park, Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)
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Alex Hyde / RF - Fer-de-lance (Bothrops asper) camouflaged on rainforest floor. Corcovado National Park, Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)
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Daniel Heuclin / Fer-de- lance (Bothrops asper) captive, occurs from Mexico to Venezuela.
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Daniel Heuclin / Fer-de- lance (Bothrops asper) captive, occurs from Mexico to Venezuela.
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Daniel Heuclin / Fer-de- lance (Bothrops asper) captive, occurs from Mexico to Venezuela.
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Martin Gabriel / Lance-headed viper (Bothrops asper), juvenile, Costa Rica, captive.
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Claudio Contreras / Fer de lance / Central american lancehead (Bothrops asper), captive.
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Nick Garbutt / Fer-de-lance (Bothrops asper) resting in leaf litter on the rainforest floor, Boca Tapada region, Costa Rica.
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Nick Garbutt / Fer-de-lance (Bothrops asper) resting in leaf litter on the rainforest floor, with person standing in background, Boca Tapada region, Costa Rica.
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Roman Willi / Fer de Lance (Bothrops asper) resting under a tree root with its tongue out, digesting a recent meal, Osa Peninsula, Costa Rica.
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Roman Willi / Fer-de-lance (Bothrops asper) juvenile resting on a Heliconia (Heliconia sp.) branch and tasting air with tongue, Osa Peninsula, Costa Rica, November.
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Roman Willi / Fer De Lance (Bothrops asper) coiled up with tongue out, Osa Peninsula, Costa Rica. Focus stacked image.
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Roman Willi / Fer de lance (Bothrops asper) coiled up on forest floor at night, Osa Peninsula, Costa Rica.
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Doug Wechsler / Venomous Fer-de-lance (Bothrops asper) coiled, La Selva Biological Station, Costa Rica.
