People can undergo a sudden change of thinking and loyalties under threat of death or intense social pressure and isolation from friends and family.

Fighting hard to protect yourself and your relatives is good for your genes, but when captured and escape is not possible, giving up short of dying and making the best you can of the new situation is also good for your genes.

Genetic studies in Iceland have found that many of the women who were the founding stock of Iceland came from England and what is now France. Some were probably captured and carried off in Viking raids only 40 generations ago.

Keith Henson Quotes