The most vulnerable species from nature use successfully the camouflage, through their colors of the skin, to avoid the predators. Researchers believe that they have found out why animals which have natural means of self defense against predators, such as venom, however, tend to be colorful.
Defenseless creatures sometimes tend to imitate the poisonous or dangerous predators. Therefore throughout evolution, animals that possess effective defenses have changed their appearance, to be as difficult to be imitated by followers of camouflage and mimicry. The development of these poisonous species toward a flamboyant appearance has the inverse meaning of camouflage: the animal wants to be known as exactly who it is, the colorful aspect being it's "trademark".
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