Butterfly Wing Patterns Create Optical Illusion That Confuses Predators

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New research reveals that butterfly wing patterns produce a 'motion dazzle' effect similar to the rotating stripes of a barbershop pole. The visual illusion makes it difficult for predators to accurately judge a butterfly's speed and direction during flight. The combination of distinctive wing markings and flight dynamics work together to generate this disorienting effect. Scientists believe this serves as an evolutionary defense mechanism, giving butterflies a survival advantage against would-be attackers.

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