Incest

The incest taboo is about as close to a universal law as human moral rules get - Hal Herzog

Incest
Incest

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HWN Suggests

Evolving a Mechanism to Avoid Sex with Siblings

Child molestation and rape top the social taboo list, according to a survey of 186 people between the ages of 18 and 47, and smoking marijuana ranks lowest among the 19 choices of forbidden behavior. In the middle—worse than robbing a bank but better than spousal murder—lies incest between brothers and sisters. Given the deleterious genetic impacts of offspring from such mating, some researchers have suggested that there may be an evolved mechanism designed to prevent that from occurring. And now evolutionary psychologist Debra Lieberman of the University of Hawaii–Honolulu believes she may have elicited some of its functions from this simple questionnaire.

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 Evolving a Mechanism to Avoid Sex with Siblings

Evolutionary psychologists claim humans evolved a detector for avoiding sex with close kin.

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