Evolutionary psychology often seems like a "just so" story and it has the unfortunate quality of not being, unless we discover time travel, falsifiable. But it does have some very useful insights into how we think and act today.

Yet a recent article in Science, "Roots of Racism", tries to explain racism, fear of outsiders and, by extension, illuminates the huge success of the anti-immigrant and anti-refugee campaigns of Howard, Le Pen, Abbott and the US nativists in an evolutionary psychology framework.