"I am going to withdraw from the world," says a snail in Hans Christian Andersen's tale The Snail and the Rosebush. "Nothing that happens there is any concern of mine." In the fall, snails get cold.
LIVERPOOL, ENGLAND—Holes in thousands of shells from Haua Fteah Cave in North Africa suggest that early humans used stone drills or thorns to extract snail meat beginning at least 150,000 years ago.
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