| culture | The enduring behaviors, ideas, attitudes, and traditions shared by a large group of people and transmitted from one generation to the next.
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| evolutionary psychology | The study of the evolution of behavior using principles of natural selection.
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| natural selection | The evolutionary process by which nature selects traits that best enable organisms to survive and reproduce in particular environmental niches.
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| norms | Rules for accepted and expected behavior. Norms prescribe "proper" behavior. (In a different sense of the word, norms also describe what most others do—what is normal.)
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| personal space | The buffer zone we like to maintain around our bodies. Its size depends on our familiarity with whoever is near us.
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