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Mimicry is the resemblance of one organism to another, usually as the result of evolution in response to a selective advantage. Mimicry can involve physical or behavioural traits, and well-studied examples are Batesian and Mullerian mimicry.
Variation around colour pattern genes is highly modular in Heliconius butterflies. This modular architecture explains the diversity of colour patterns and provides a flexible mechanism for rapid morphological diversification.