FOR A LONG TIME, DURING MY NEW ENGLAND DIVING DAYS, the northern moon snail (Euspira heros) represented a mystery to me. I kept seeing these structures I knew were moon snail “sand collars,” mucus-bound masses of sand that were said be be egg-laden. Except that there didn’t appear to be any eggs. SANDY SAND COLLARS MOON SNAIL SAND COLLAR MYSTERY SOLVED Then, one day, I found this: BIGFOOT SIGHTED! Thinking about moon snails brings to
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