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How do the butterflies find the vines?

April 26, 2017butterflies vines

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How do the butterflies find the vines?

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The vine contains pheromones which the butterfly can detect from at least a few kilometres away. The female will come in and lay her eggs only on selected leaves that are at the exact right stage for her caterpillars to feed on when they hatch. She does this with receptors in her forelegs.