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Birds learn to avoid flashy, hard-to-catch butterflies and their lookalikes

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The showy colors of some butterflies could advertise their speed and nimbleness, much like a coat of bright yellow paint on a sports car. A new study shows birds can learn to recognize these visual cues, avoiding not only butterflies they've failed to nab in the past but similar-looking species as well.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/birds/~4/Fw1g5vqCvHk

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