How Did Ancient Humans Know Which Plants Were Poisonous?

How Did Ancient Humans Know Which Plants Were Poisonous? How did archaic Homo sapiens survive foraging in prehistoric wilderness without chemistry labs or poison control centers? Discover how early humans developed a multi-layered survival defense system—from the genetics of bitter taste receptors to primitive chemical processing and animal surveillance. We explore the evolutionary biology of human TAS2R receptors, the cross-species genius of zoopharmacognosy, step-by-step Pleistocene bioassay routines, and ancient food detoxification techniques like hydraulic leaching and wood-ash nixtamalization. #HumanEvolution #Anthropology #PrehistoricSurvival #AncientHistory #ScienceExplainer