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preadaptation
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The answer PREADAPTATION has 0 possible clue(s) in existing crosswords.
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Definitions of preadaptation in various dictionaries:
A characteristic evolved by an ancestral species or population that serves an adaptive though different function in a descendant species or population.
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A characteristic evolved by an ancestral species or population that serves an adaptive though different function in a descendant species or population. |
An adaptation which serves a different purpose from the one for which it evolved. |
Preadaptation might refer to |
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Exaptation (Stephen Jay Gould and Elisabeth Vrba's proposed replacement for what he considered the teleologically-loaded term "pre-adaptation") and the related term co-option describe 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: initially they may have evolved for temperature regulation, but later were adapted for flight. Interest in exaptation relates to both the process and products of evolution: the process that creates complex traits and the products (functions, anatomical structures, biochemicals, etc.) that may be imperfectly developed. |