properly, given their position. • The Sanctity/degradation foundation evolved initially in response to the adaptive challenge of the omnivore’s dilemma, and then to the broader challenge of living in a world of pathogens and parasites. It includes the behavioral immune system, which can make us wary of a diverse array of symbolic objects and threats. It makes it possible for people to invest objects with irrational and extreme values—both positive and negative—which are important for binding groups together.
