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Exaptation or co-option is a shift in the function of a trait during evolution. For example, a trait can evolve because it served one particular function, but subsequently it may come to serve another. Exaptations are common in both anatomy and behaviour. Bird feathers are a classic example.
16 Σεπ 2013 · Exaptation is a term used in evolutionary biology to describe a trait that has been co-opted for a use other than the one for which natural selection has built it.
Exaptation refers to the shifts in functions of a trait during evolution, so that one trait originally serving a particular function may evolve and serve another one, achieving complete fitness for that trait (Gould, 1991; Gould and Lewontin, 1979).
Definition. Exaptation refers to a trait that has evolved for one purpose but is later co-opted for a different function. This concept highlights the flexibility of biological traits and illustrates how features can be repurposed in the context of evolutionary processes.
The meaning of EXAPTATION is a trait, feature, or structure of an organism or taxonomic group that takes on a function when none previously existed or that differs from its original function which had been derived by evolution; also : the condition or circumstance of possessing one or more such traits, features, or structures.
7 Αυγ 2023 · Exaptation, a key concept in evolutionary biology, refers to the repurposing of existing traits for new functions. This process plays a significant role in both biological and cultural innovation, enabling rapid evolutionary responses.
1 Σεπ 2013 · The term exaptation was introduced to encourage biologists to consider alternatives to adaptation to explain the origins of traits. Here, we discuss why exaptation has proved more successful in technological than biological contexts, and propose a revised definition of exaptation applicable to both genetic and cultural evolution.
