Warning colouration, also known as aposematism, is a biological adaptation in which animals have bright and noticeable colours or patterns to warn predators that they are harmful, poisonous, or unpalatable. These colours act as a signal to potential predators to stay away. Examples include the vivid colours of poison dart frogs and the bold patterns of monarch butterflies. Warning colouration helps protect both the animal and the predator by reducing the chances of a harmful encounter. It is an example of how animals adapt to survive in their environment.
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