When biologist E.O. Wilson discovered in the 1960s that ants use pheromones to structure their complex societies, he opened the door to a vastly expanded sense of our environment – and the limits of our ability to perceive it. From “biodiversity” to “biophilia,” few living thinkers have contributed more vital concepts to our understanding of the natural world. E.O. Wilson: Of Ants and Men traces his journey of discovery from its inception, through moments of controversy, and into his recent conservation work in Mozambique.