I received a D.Sc. from the University of London in 1992.

Race differences show up early in life.

Deconstructing the concept of race not only conflicts with people's tendency to classify and build family histories according to common descent but also ignores the work of biologists studying non-human species.

We emigrated to South Africa and later to Canada so I went to school in several places.

I received a D.Sc. from the University of London in 1992.

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

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