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Which kinds of signals can organisms mimic besides visual appearance?
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mimicry
Heliconius butterflies demonstrating Müllerian mimicry, a form of mimicry where one or more species exhibit closely similar warning systems. In this case, wing patterning and coloration among the species appear very similar.
While visual appearance is the most commonly studied form of mimicry, organisms also utilize a variety of other sensory signals to deceive receivers. Research has disclosed fascinating instances where the resemblance involves the following modalities:
- Sound: Mimics may produce acoustic signals that resemble those of a model to deceive predators or prey.1
- Smell: Many organisms, such as certain carrion flowers and stinkhorn mushrooms, mimic the odors of dung or rotting flesh to attract specific insects for pollination or spore dispersal.12
- Behavior: Mimics often adopt the movements or social actions of a model to complete the deception. For example, some aphids use their legs as "antennae dummies" to mimic the movements of fellow ants, successfully eliciting food-begging responses.13
- Biochemistry: In some complex relationships, the mimicry extends to the chemical makeup or biochemical signals of the model.1
These signals are essential for deception, as they trigger a specific, advantageous reaction in a receiver that mistakes the mimic for the model.1