十万个为什么·科学阅读30篇（6）
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How Do Butterflies Taste With Their Feet?
蝴蝶是怎么用脚尝味道的？
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Butterflies have taste sensors on their feet and legs.蝴蝶的足和腿上长有味觉感受器。
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They land on leaves or flowers to check if food is safe.它们落在叶片或花朵上，检查食物是否安全。
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Female butterflies taste plants to find good egg-laying spots.雌蝶通过足部品尝植物，寻找合适的产卵地点。
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Their feet detect sugar, salt, and bitter chemicals.它们的足能探测糖分、盐分和苦味化学物质。
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This helps them avoid poisonous or bad-tasting plants.这有助于它们避开有毒或难吃的植物。
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Taste signals go directly to their nervous system.味觉信号直接传至神经系统。
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Butterflies do not chew food—they sip nectar with a straw-like tongue.蝴蝶不咀嚼食物，而是用吸管状的口器吸食花蜜。
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This foot-tasting ability makes them excellent plant scouts.这种用足品尝的能力使它们成为出色的植物侦察员。