Nobel Laurette Dudley Herschbach (R) presents the 2016 IgNobel Prize in Physics to Susanne Akesson of Sweden for work "discovering why white-haired horses are the most horsefly-proof horses, and for discovering why dragonflies are fatally attracted to black tombstones" during the 26th First Annual Ig Nobel Prize ceremony at Harvard University in Cambridge, Massachusetts, U.S. September 22, 2016. REUTERS/Brian Snyder