![](http://www.alamy.com/thumbs/6/393668BF-BAD7-4A7A-8C04-39EBBB791EB6/2R01F28.jpg)
An old shell of Unio pictorum lies on a background of asphalt.
Size: 5163px × 3442px
Photo credit: © Anatoliy Berislavskiy / Alamy / Afripics
License: Royalty Free
Model Released: No
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