(Biyoloji) Exaptation, cooption, and preadaptation are related terms pertaining to shifts in the function of a trait. At one point the trait evolved because it served one function but subsequently it evolved because it served another function. Exaptations are common in both anatomy and behavior. A classic example is bird feathers, which initially evolved for temperature regulation and later evolved for flight. Interest in exaptation relates to both the process and product of evolution: the process that creates complex traits and the product that may be imperfectly designed
If someone is co-opted into a group, they are asked by that group to become a member, rather than joining or being elected in the normal way. He was co-opted into the Labour Government of 1964 He's been authorised to co-opt anyone he wants to join him
If a group or political party co-opts a slogan or policy, they take it, often from another group or political party, and use it themselves. He co-opted many nationalist slogans and cultivated a populist image
neutralize or win over through assimilation into an established group; "We co-opted the independent minority tribes by pulling them into the Northern Alliance