Joel Sartore / Photo Ark / Central American rattlesnake (Crotalus simus) coiled up, portrait, Phoenix Herpetological Sanctuary. Captive, occurs in Mexico and Central America.
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Daniel Nunez / Central American rattlesnake (Crotalus simus) resting on dry forest floor, Motagua Valley, Zacapa, Guatemala.
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Daniel Nunez / Central American rattlesnake (Crotalus simus) resting on forest floor with tongue out, Heloderma Natural Reserve, Zacapa, Guatemala. Cropped.
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Joel Sartore / Photo Ark / Central American rattlesnake (Crotalus simus) looking around and flicking its tongue, Phoenix Herpetological Sanctuary, Arizona, USA. Captive.