The biological factors underlying race differences in sports have consequences for educational achievement, crime and sexual behavior.

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

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

Nonetheless, much has been learned by studying the statistical differences between the various human races.

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

On average, the Chinese, Koreans, and Japanese are more similar to each other and are different from Australians, Israelis and the Swedes, who in turn are similar to each other and are different from Nigerians, Kenyans, and Jamaicans.

Blacks in the Caribbean, Britain, Canada and sub-Saharan Africa as well as in the United States have low IQ scores relative to whites.