Chris Mattison / Red sided Garter Snake (Thamnophis sirtalis infernalis) Point Reyes, California, USA, April.
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John Cancalosi / Common garter snake (Thamnophis sirtalis) Pennsylvania, USA, May.
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John Cancalosi / Common garter snake (Thamnophis sirtalis) Pennsylvania, USA, May.
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John Cancalosi / Common garter snake (Thamnophis sirtalis) Pennsylvania, USA, May.
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John Cancalosi / Common garter snake (Thamnophis sirtalis) Pennsylvania, USA, May.
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John Cancalosi / Common garter snake (Thamnophis sirtalis) Pennsylvania, USA, May.
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John Cancalosi / Timber rattlesnakes (Crotalus horridus) gravid females basking to bring young to term, Common gartersnake (Thamnophis sirtalis) also visible in the group. Pennsylvania, USA.
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Joel Sartore / Photo Ark / Chicago garter snake (Thamnophis sirtalis semifasciatus) head portrait, Indianapolis Zoo. Captive, occurs in USA.
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Joel Sartore / Photo Ark / Chicago garter snake (Thamnophis sirtalis semifasciatus) portrait, Indianapolis Zoo. Captive, occurs in USA.
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Joel Sartore / Photo Ark / Chicago garter snake (Thamnophis sirtalis semifasciatus) portrait, Indianapolis Zoo. Captive, occurs in USA.
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George Sanker / Eastern garter snake (Thamnophis sirtalis) Acadia National Park, Maine, USA. July.
