Dictionary of Human Evolution and Biology

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Interaction

In behavioral biology, an encounter between individuals in which each responds to the other. Interaction includes signal exchange in which both animals are not present, such as scent or physical signals such as scratchings on a tree. This may result in one individual withdrawing; interaction may be across species as well as interspecific. Examples are greetings, parental care, submission, courtship, agonistic behavior, displays, etc.

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