THE ORIGIN OF HUMAN RACES AND THE ANTIQUITY OF MAN ... in the physical types of different races; and then we present to him, among the different tribes of man, continual gradations shading ...

Race and ethnicity are two concepts related to human ancestry ... ethnic affiliations more readily than racial ones, though different ethnicities have been folded into racial categories during ...

When Ashley Ng is out and about without her husband, she gets looks and questions about her twins' seemingly different races. "Some people ask are they mine, are they twins or were they conceived ...

A new study finds the genetic backgrounds of people in the U.S. are "highly complex" and may differ from their self-defined ...

A study dating back to the 1960s, and replicated many times since, has proven that people find it difficult to recall if they have seen a person from a different race before. Known as the “other ...

However, people of different racial groups can age differently ... However, researchers have come to the conclusion that race is a social construct rather than a biological one.