EXPLAINED: Why Snakes Flick Their Tongues
Many people think a snake’s forked tongue is creepy. Every so often, the snake waves it around rapidly, then retracts it. Theories explaining the forked tongues of snakes have been around for thousands of years. Aristotle reasoned that it provided snakes with “a twofold pleasure from savours, their gustatory sensation being as it were doubled”. […]
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