Plants and Human Conflict

Perhaps the least appreciated dramatis personae in human history are plants. Humans, like all other animals, cannot produce their own food as plants do through photosynthesis, and must therefore acquire organic material for survival and growth by eating plants or by eating other animals that eat plants. Humans depend on plants not only as a food source, but also as building and clothing materials and as sources of medicines, psychoactive substances, spices, pigments, and more. With plants b...