Formation of a new race takes place when, over several generations, individuals in one group reproduce more frequently among themselves than they do with individuals in other groups.

J. Philippe Rushton

Among Formation Frequently Generations Group Groups Individuals More New Other Over Place Race Reproduce Several Takes Than Themselves

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But with each passing year and each new study, the evidence for the genetic contribution to individual and group differences becomes more firmly established than ever.

— J. Philippe Rushton

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Of course, individuals vary greatly within each racial group and should be treated as such.

— J. Philippe Rushton

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Each race (or variety) is characterized by a more or less distinct combination of inherited morphological, behavioral, physiological traits.

— J. Philippe Rushton

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A race is what zoologists term a variety or subdivision of a species.

— J. Philippe Rushton

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To deny the predictive validity of race at this level is nonscientific and unrealistic.

— J. Philippe Rushton