From here:

Psychologists have long known that many people are prejudiced towards others based on group affiliations, be they racial, ethnic, religious, or even political. However, we know far less about why people are prone to prejudice in the first place. New research, using monkeys, suggests that the roots lie deep in our evolutionary past…….

Overall, the results support an evolutionary basis for prejudice.

All of which is bad news for Darwinists who believe that evolution is responsible for human morality: it makes racism a moral good.

On the other hand, it’s good news for racist Darwinists.