Northern water snake in water.jpg
Stolz Gary M, U.S. Fish and Wildlife Service
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Northern water snake in water, Public-domain-image.com (check needed), Nerodia sipedon swimming, Public-domain-image.com
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Northern water snake in water, 
:Image title: Northern water snake in water
:Image from Public domain images website,
commons
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水中のシロヘビ、パブリックドメイン画像.com(チェックが必要)、シペドン泳ぎ、パブリックドメイン画像.com
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水に棲む北の水蛇
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water snake hydrus nerodia watered stock water right