About 300,000 years ago, an early human was foraging for food in an expanse of grassland. She spied a cluster of mushrooms poking out of dark soil, picked one of the brown caps, and examined its ...

FOR MILLENNIA, HUMANS HAVE BEEN EXTRACTING and using natural psychedelics like ayahuasca and psilocybin to alter their moods and perceptions, distorting their sense of reality. History is scattered ...