Mimicry occurs under evolution, when a group of organisms, the mimics, evolve to share common perceived characteristics with another group, the models. This can confuse and escape from other organisms ( such as predator). There are three major types of mimicry: 1. Batesian mimicry (a harmless species has evolved to imitate a harmful species which are toxic or unpalatable in order to gain the advantage of predators' avoidance) 2. Müllerian mimicry( two or more poisonous species, that may or may not be closely related and share one or more common predators, have come to mimic each other's warning signals) 3. Aggressive mimicry (species mimic another harmless species to attract prey).