Winkle Trail 1 – Common gastropod winkle, Littorina littorea, ploughing a trail through a shallow sand deposit to reveal the colourful patterned surface of foliated fine-grained granodiorite of L’Ancresse type as it browses the biofilm on the rock at Pembroke Bay on the Channel island of Guernsey.
Jessica's Nature Blog 
Fascinating behavior and design!
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Thank you, CentralOhioNature
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That is lovely! Winkle doodles! Lovely pic, Jessica!
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Thanks, Jo.
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