This hour of Modern Notion Daily, our guest is Thomas Trautmann, author of Elephants and Kings: An Environmental History (University of Chicago Press, 2015). Trautmann looks at the fascinating history behind how and why elephants were first tamed for use in battle, from more than two thousand years ago until the Vietnam War. Later in the hour, Mark Hay joins us to give us his top five list of foods to stock up on for the apocalypse.

Music this hour: