Pebbles with holes made by sea creatures – Jessica's Nature Blog

  Pebbles with holes in them are a common occurrence on the beaches along the Jurassic Coast in Dorset - and lots of other U.K. locations as well. Many of these tunnels, burrows or borings have been made by small marine invertebrate animals such as certain species of  bivalved molluscs, polychaete worms, and even sponges.…

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