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How did mimicry research support Charles Darwin’s theory of natural selection?

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Müllerian mimicry: butterflies — mimicry *Heliconius* butterflies demonstrating Müllerian mimicry, a form of mimicry where one or more species exhibit closely similar warning systems. In this case, wing patterning and coloration among the species appear very similar.

Mimicry research provided a critical test case for Charles Darwin’s theory of natural selection during the 19th-century scientific controversy surrounding his work.12

The naturalist Henry Walter Bates offered foundational support for Darwin’s ideas through his study of Batesian mimicry. By observing that harmless, palatable species evolved to resemble noxious or dangerous models, Bates demonstrated that such resemblances provided a clear survival advantage by deceiving predators. This provided tangible evidence that evolutionary changes could be driven by the selective pressure of predators learning to avoid specific signals, such as warning coloration.3452

In the decades following the publication of On the Origin of Species, mimicry became a primary example used to illustrate how natural selection operates to shape the traits of living organisms. Detailed studies of these mimetic resemblances continue to strengthen the theory of natural selection by showing how specific selective pressures drive the evolution of signals and survival strategies in nature.21