Worm cast
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.
![](../I/m/Lugworm_cast%2C_Red_Wharf_Bay%2C_Isle_of_Anglesey_-_geograph.org.uk_-_30354.jpg)
Lugworm cast, Red Wharf Bay, Isle of Anglesey
References
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