A Pharmacy in the Canopy Deep within the dense, humid rainforests of Uganda’s Budongo Forest, a troop of Eastern chimpanzees (Pan troglodytes schweinfurthii) has been observed engaging in a behavior that bridges the gap between instinct and pharmacology. Researchers monitoring these primates have documented a sophisticated form of self-medication that suggests a profound understanding of their botanical environment. For months, field biologists tracked individuals suffering from gastrointestinal distress and lethargy. Rather than seeking out their standard diet of ripe figs or succulent fruits, these animals bypassed abundant food sources to locate specific, non-nutritive plant species. They meticulously stripped the bark or chewed the pith of plants known to contain potent anti-inflammatory and antiparasitic compounds. ...