A polychaete in its natural state, sitting in its tube with its head out grazing the sediment around it. You can see the branchiae (breathing tentacles) on its head gathering oxygen while it eats.
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A polychaete in its natural state, sitting in its tube with its head out grazing the sediment around it. You can see the branchiae (breathing tentacles) on its head gathering oxygen while it eats.
