HOT (Human Origins Today) Topic: Evolution and Extinction of Apes in the Old World July 6, 2012 3:00PM - 4:00PM Free; Location: One Species, Worldwide Theater; Hall of Human Origins Caitlin Schrein from the Smithsonian's Human Origins Program will lead a discussion on the evolution and extinction of apes in the Old World.Free; no advance reservations or tickets required.