Abstract

In the evolution of cognition and behavior, a recurrent question concerns the degree to which any given aspect of the phenotype has been “selected for” or “specified,” as opposed to arising as a byproduct of some other process. In some sense this is the key question for evolutionary theories of development that seek to connect ultimate evolutionary accounts to proximate developmental accounts of ontogeny. A popular solution to the specification problem is to invoke “emergence,” in which phenotypes are co-constructed by many causes and cannot be reduced to any one of them. However, the concept of emergence, while appealing, can obscure sources of ultimate causation by leaving them unspecified. Here I explore the idea of selected emergence, in which phenotypic outcomes do emerge from a confluence of factors, some haphazard, but which include in part a history of selection, genetic and / or cultural, to produce phenotypic outcomes of that type. I discuss potential case studies of selected emergence, explore its empirical implications and provide suggestions for future research on the evolution of emergent outcomes.

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