McKenna lays out the Stoned Ape hypothesis -- that psilocybin ingestion shaped early human evolution by suppressing dominance hierarchies, strengthening communal bonds and sharpening hunting -- and describes Food of the Gods as a Trojan horse left on the doorstep of anthropology. Released from Esalen's archive as an EXCERPT of a longer August 1992 Esalen talk.

Part one of an ethnobotany course by Terence McKenna from 1984.