Hello !
a cockle is a shell
cockle is a name for a group of mostly small edible salt water clams . there are more than 200 spices of cockles.
A cockle is a type of bivalve mollusk with a heart-shaped, ribbed shell, commonly found in sandy coastal environments. They are filter feeders, playing a role in maintaining water quality, and are also enjoyed as seafood in various cultures. Cockles reproduce by releasing eggs and sperm into the water, where fertilization occurs.
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