Chien Lee / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli) camouflaged in leaf litter, Mashpi Amagusa Reserve, Pichincha, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli) eye and pit sensory organ, Mindo, western slope of Andes, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli) held up by photographer's assistant, Shannon Bowley, Mindo, western slope of Andes, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli), Mindo, western slope of Andes, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli), Andes, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli), Andes, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli), Andes, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli), Andes, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli), Andes, Ecuador
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James Christensen / Ecuadorian Toad-headed Pit-viper (Bothrocophias campbelli), Andes, Ecuador
