Mimicry

n. art or practice of mimicking, mime; imitation, close resemblance (also of animals)

In evolutionary ecology, mimicry (also known as mimetism) describes a situation where one organism, the mimic, has evolved to share common outward characteristics with another organism, the model, through the selective action of a signal-receiver or "dupe". Collectively this known as a mimicry complex. The model is usually another species except in cases of automimicry. The signal-receiver is typically another intermediate organism, e.g the common predator of two species, but may actually be the model itself (such as an orchid resembling a female wasp). As an interaction, mimicry is in most cases advantageous to the mimic and harmful to the receiver, but may increase, reduce or have no effect on the fitness of the model depending on the situation. Models themselves are difficult to define in some cases, for example eye spots may not bear resemblance to any specific organism's eyes, and camouflage often cannot be attributed to any particular model.
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Mim·ic·ry n. The resemblance of one organism to another or to an object in its surroundings for concealment and protection. [more]Mimicry - Community and Resources

Noun
1. the act of mimicking; imitative behavior
(synonym) apery
(hypernym) impersonation, personation
(hyponym) parody, mockery, takeoff
2. the resemblance of an animal species to another species or to natural objects; provides concealment and protection from predators
(hypernym) imitation

n. mimicry, mimesis