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How Do Ants Build Bridges with Their Bodies?
蚂蚁如何用身体搭桥？
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Certain ant species, like fire ants, link legs and jaws to form living, flexible structures over gaps.
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Each ant grips two others firmly, creating a network that distributes weight evenly across many individuals.
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This collective behavior requires no central leader—ants respond locally to touch and pheromone cues.
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The bridge adjusts its shape dynamically as more ants join or leave, depending on traffic flow.
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Researchers found that these structures can support up to 100 times an individual ant’s body weight.
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Unlike rigid man-made bridges, ant bridges bend, stretch, and self-repair without breaking.
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Engineers now mimic this principle to design modular robots that assemble into adaptive tools.
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Such swarm intelligence shows how simple rules can produce complex, functional group behaviors.