Worm cast
Structure created by worms, typically on soils such as those on beaches
![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Lugworm_cast%2C_Red_Wharf_Bay%2C_Isle_of_Anglesey_-_geograph.org.uk_-_30354.jpg/220px-Lugworm_cast%2C_Red_Wharf_Bay%2C_Isle_of_Anglesey_-_geograph.org.uk_-_30354.jpg)
A worm cast is a structure created by worms, typically on soils such as those on beaches[1][2] that gives the appearance of multiple worms. They are also used to trace the location of one or more worms.
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