Does racism stem from low intelligence? It's not entirely clear, though recent research found links between bigoted thinking and low scores on I.Q tests. But a new study points to an even deeper explanation for xenophobia and intolerance.
It suggests that prejudice is programmed into our genes
The study, published January 24 in Philosophical Transactions of the Royal Society B, suggests that racism, for example, is essentially a holdover from ancient history - when humans lived in tribes and it made sense to view outsiders with hostility and fear.
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