How does Batesian mimicry help harmless organisms avoid predators?

Batesian mimicry is a biological phenomenon where a harmless organism, known as the mimic, gains protection by resembling a noxious or dangerous species, known as the model.12

This defense mechanism relies on the behavior of predators that have learned to avoid the model due to its unpalatability or other defensive qualities, often signaled by conspicuous coloration. When a predator encounters the harmless mimic, it mistakes the organism for the dangerous model and avoids attacking it.12

The effectiveness of this strategy depends on the predator's ability to recognize and associate the signal with a negative experience. Because the mimic exploits the predator's learned avoidance of the model, it can survive and thrive despite lacking actual chemical or physical defenses. This form of deception is named after the 19th-century English naturalist H.W. Bates, who first identified the pattern while studying butterflies in Brazil.321