Today's hipster creatives and entrepreneurs are hardly the first generation to partake of ayahuasca, according to archaeologists who have discovered traces of the powerfully hallucinogenic potion in a 1,000-year-old leather bundle buried in a cave in the Bolivian Andes. Led by University of California, Berkeley, archaeologist Melanie Miller, a chemical analysis of a pouch made from three fox snouts sewn together tested positive for at least five plant-based psychoactive substances. They included dimethyltryptamine (DMT) and harmine, key active compounds in ayahuasca, a mind-blowing brew commonly associated with the Amazon jungle... Miller's analysis of a scraping from the fox-snout pouch and...