In the spring of 1963, when our guest Dr. Thomas Seeley was not quite 11 years old, he lived — as he still does today — in a wooded stream valley just east of Ithaca, New York. One day, he heard a loud buzzing sound and saw a bread-truck-sized cloud of honey bees swarming an ancient black walnut tree near his family’s house. From a distance, he watched as the bees took up residence in a cavity in the tree. Why, he wondered, did the bees choose that particular tree cavity for their home? Humans have lived with bees for our entire existence as a species, but the vast majority of studies have focused on how bees live in managed colonies, whether the clay cylinders used to keep bees in the Iron Age or the white boxes of neighborhood beekeepers. But here, in the black walnut tree, were wild bees — living without human supervision or human understanding. Their lives present great mysteries. That 11-year-old grew up to become the world’s leading authority on honey bees, and a magnificently gifted writer about their worlds. Dr. Seeley joins us to discuss his research about wild honey bees’ behavior, social lives and ecology, and his new book: “The Lives of Bees: The Untold Story of the Honeybee in the Wild.”