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Tread marks

 photo P1070362_zpsyfamn98j.jpg
The marks on the surface of this tinder polypore Fomes fomentarius are the slow deliberate strokes of a mollusk's tongue. The mineralized end of a radula--the feeding instrument of snails and slugs--swiped across, scraping material into the gastropod's mouth.

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( 1 comment — Leave a comment )
darkest_diary
Dec. 13th, 2015 07:20 pm (UTC)
I love your pictures, they are always so informative!
( 1 comment — Leave a comment )

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