Original sentence: In his book Race, Evolution, and Behavior, the psychologist and head of the Pioneer Fund J.Philippe Rushton applies r/K selection theory to the topic of different reproductive strategies between human races.Rushton's research has been heavily criticized, and other studies have contradicted many of his claims.Rushton’s book claims that Asians, who have slightly longer lifespans and lower rates of reproduction relative to other races, are at the K end of the spectrum, while Africans, for whom the opposite is true, are more r-strategists
Edited sentence: However, Rushton's research has been widely criticized, and other studies have contradicted many of his claims.In his book Race, Evolution, and Behavior, the psychologist and head of the Pioneer Fund, J.Philippe Rushton, used r/K selection as a basis for his scientific racism theories