David P Barash is an evolutionary biologist and emeritus professor of psychology at the University of Washington in Seattle. His most recent books are Oops!: The Worst Blunders of All Time (2023, Skyhorse Publishing), Peace and Conflict Studies, 5th ed (2022, Oxford Univ Press), and Threats: Intimidation and its Discontents (2020, OUP) and Through a Glass Brightly: Using Science to See Our Species as We Really Are (2018, OUP), plus with his wife, the psychiatrist Judith Eve Lipton, Strength Through Peace: How Demilitarization Led to Peace and Happiness in Costa Rica, and What the Rest of the World Can Learn from a Tiny, Tropical Nation (2018, OUP).