John Cancalosi / Western diamondback rattlesnake (Crotalus atrox), defensive rattling, Arizona, USA, April.
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Bence Mate / Western diamond-backed rattlesnake (Crotalus atrox) Texas, USA, April.
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Rolf Nussbaumer / Western Diamondback Rattlesnake (Crotalus atrox), adult in striking pose in wildflower field. Laredo, Webb County, South Texas, USA, April.
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Rolf Nussbaumer / RF- Western Diamondback Rattlesnake (Crotalus atrox), adult in striking pose with rattle raised, in wildflowers. Laredo, Webb County, South Texas, USA. April. (This image may be licensed either as rig...
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John Cancalosi / Western diamondback rattlesnake close up {Crotalus atrox} rattle visible, Texas,
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Karine Aigner / Western diamondback rattlesnake (Crotalus atrox) tail rattle. Texas, USA. May.
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox) flicking tongue and with rattle raised. Arizona, USA. Controlled conditions.
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox) camouflaged amongst rocks, with rattle raised. Sonoran Desert, Arizona, USA. Controlled conditions. June 2019.
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox) with rattle raised, Arizona, USA. Controlled conditions.
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox), flicking tongue and with rattle raised, Arizona, USA. Controlled conditions.
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Alan Murphy/ BIA / Greater Roadrunner (Geococcyx californianus) predating Western Diamondback Rattlesnake (Crotalus atrox) juvenile, Arizona
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Alan Murphy/ BIA / Greater Roadrunner (Geococcyx californianus) predating Western Diamondback Rattlesnake (Crotalus atrox) juvenile, Arizona
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Alan Murphy/ BIA / Greater Roadrunner (Geococcyx californianus) predating Western Diamondback Rattlesnake (Crotalus atrox) juvenile, Arizona
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Alan Murphy/ BIA / Greater Roadrunner (Geococcyx californianus) predating Western Diamondback Rattlesnake (Crotalus atrox) juvenile, Arizona
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox) in habitat, rattling tail, Arizona, USA, October. Controlled conditions
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox) with tail wrapped in bush, Arizona, USA, October. Controlled conditions.
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox) sheltering under bush, Arizona, USA, October. Controlled conditions.
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox) coiled up with rattle up, Arizona, USA, Controlled conditions
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Daniel Heuclin / Western diamondback rattlesnake (Crotalus atrox) Arizona, USA, October. Controlled conditions
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John Cancalosi / Western diamondback rattlesnake (Crotalus atrox) using rattle as defensive warning, Sonoran Desert, Arizona, USA
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John Cancalosi / Western diamondback rattlesnake (Crotalus atrox) using rattle as defensive warning, Sonoran Desert, Arizona, USA
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Cyril Ruoso / Western Diamondback Rattlesnake (Crotalus atrox) coiled under cactus, southern Texas
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Cyril Ruoso / Western Diamondback Rattlesnake (Crotalus atrox) with extended tongue, southern Texas
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Cyril Ruoso / Western Diamondback Rattlesnake (Crotalus atrox), southern Texas
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John Cancalosi / Western Diamond-backed Rattlesnake (Crotalus atrox) shortly after emerging from winter hibernation site. Sonoran desert, Arizona, March.
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Michael D. Kern / Western diamondback rattlesnake (Crotalus atrox) with tongue and rattle exposed, USA
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Stephen Dalton / Western diamondback rattlesnake (Crotalus atrox) striking, controlled conditions, from USA
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Albert Lleal / Western Diamondback Rattlesnake (Crotalus atrox) albino smelling the air with his tongue, native to North America
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Albert Lleal / Western Diamondback Rattlesnake (Crotalus atrox) retracting and repositioning fangs, native to North America
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David Welling / Western Diamondback Rattlesnake (Crotalus atrox) in defensive coil shaking rattle, Texas Hill Country, Texas, USA
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David Welling / Western Diamondback Rattlesnake (Crotalus atrox), Rio Grande Valley, Texas, USA
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David Welling / Western Diamondback Rattlesnake (Crotalus atrox), Rio Grande Valley, Texas, USA
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Albert Lleal / Western Diamondback Rattlesnake (Crotalus atrox) SEM close-up of keeled scales on the head at 14x magnification
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Rod Williams / Western Diamond-back Rattlesnake (Crotalus atrox) head and rattle, captive, from South Western USA and North West Mexico
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Luciano Candisani / Western Diamondback Rattlesnake (Crotalus atrox) moving through habitat,
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Albert Lleal / Western Diamondback Rattlesnake (Crotalus atrox) albino, native to North America
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John Cancalosi / Tail / rattle of Western Diamondback Rattlesnake (Crotalus atrox), Sonoran Desert, Arizona, USA
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David Welling / Western Diamondback Rattlesnake's rattle {Crotalus atrox} Texas, USA
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David Welling / Western diamondback rattlesnake {Crotalus atrox} showing rattle, Texas, USA
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David Welling / Western diamondback rattlesnake {Crotalus atrox} showing rattle, Texas, USA
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LYNN M. STONE / Western diamondback rattlesnake with fangs exposed {Crotalus atrox}
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Michael & Patricia Fogden / Western Diamondback Rattlesnake (Crotalus atrox) in threat display, Arizona
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John Cancalosi / Rattle of Western diamondback rattlesnake, NM, USA
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Rick Bowers/ BIA / Greater Roadrunner (Geococcyx californianus) predating Western Diamondback Rattlesnake (Crotalus atrox) juvenile, Arizona
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Rick Bowers/ BIA / Greater Roadrunner (Geococcyx californianus) predating Western Diamondback Rattlesnake (Crotalus atrox) juvenile, Arizona
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Rick Bowers/ BIA / Greater Roadrunner (Geococcyx californianus) predating Western Diamondback Rattlesnake (Crotalus atrox) juvenile, Arizona
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Nate Chappell/ BIA / Western Diamondback Rattlesnake (Crotalus atrox) in defensive posture, Texas
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Heidi & Hans-Juergen Koch / Western Diamondback Rattlesnake (Crotalus atrox) being milked for anti-venom, Germany
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Albert Lleal / Western Diamondback Rattlesnake (Crotalus atrox) head scales, Barker Canyon Road, Grand Coulee, Grant County, Washington. SEM 21x
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Tom Vezo / Western Diamondback Rattlesnake (Crotalus atrox), Arizona
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Joel Sartore / Photo Ark / Tortuga Island rattlesnake (Crotalus atrox tortugensis) resting, portrait, Phoenix Herpetological Sanctuary. Captive, occurs in Tortuga Island, Gulf of California.