James Christensen / Northern Pacific Rattlesnake (Crotalus oreganus oreganus) flicking tongue in defensive posture, Barker Canyon Road, Grand Coulee, Grant County, Washington
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Pete Oxford / Grand Canyon Rattlesnake (Crotalus oreganus abyssus) showing rattle, native to Arizona
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Pete Oxford / Grand Canyon Rattlesnake (Crotalus oreganus abyssus) flicking tongue, native to North America
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James Christensen / Northern Pacific Rattlesnake (Crotalus oreganus oreganus) flicking tongue in defensive posture, Barker Canyon Road, Grand Coulee, Grant County, Washington
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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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Pete Oxford / Grand Canyon Rattlesnake (Crotalus oreganus abyssus) in defensive posture shaking rattle, native to Arizona
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Jeff Foott / Grand Canyon rattlesnake (Crotalus oreganus abyssus) feeding on Northern mocking bird (Mimus polyglottos). Havasu Canyon, Grand Canyon National Park, Arizona, USA. September.
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Jeff Foott / Grand Canyon rattlesnake (Crotalus oreganus abyssus) feeding on Northern mocking bird (Mimus polyglottos). Havasu Canyon, Grand Canyon National Park, Arizona, USA. September.