Mimicry in evolutionary biology refers to an evolved similarity between the organism and another organism of other species. The phenomenon may take place between the individuals of a similar species or between the individuals of distinct species. The main objective of mimicry is to safeguard the species from predators, resulting in an antipredator adaptation.
The evolution of mimicry takes place when the predator witnesses a similarity between the model and the mimic and as a consequence modifies its behavior in a manner, which offers a selective benefit to the mimic.
Kettlewell thought that if natural selection caused the change in the moth population, the following must be true: Heavily polluted forests will have mostly dark peppered moths. Clean forests will have mostly light peppered moths. Dark moths resting on light trees are more likely than light moths to be eaten by birds.