Twins Aaron and Andrew Aguirre during the 27th First Annual Ig Nobel Prize Ceremony at Harvard University...
(L-R) Twins Aaron and Andrew Aguirre demonstrate the Ig Noble Cognition prize-winning study, "Is That Me or My Twin? Lack of Self-Face Recognition Advantage in Identical Twins," during the 27th First Annual Ig Nobel Prize Ceremony at Harvard University in Cambridge, Massachusetts, U.S. September 14, 2017. REUTERS/Gretchen Ertl
