In Humphrey's waterworld, oysters grow 2 inches a year and often, around the age of 2, change from male to female. Seemingly inert coquina shells are anything but, moving up and down the beach's surf line finding the best place to feed. Expert fishermen probably know all the stuff Humphreys covers. But for the rest of us, he offers the written equivalent of a glass-bottom boat.
Seasons is a keeper.
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