Nicole Gerardo, assistant professor of biology at Emory University, will present “Immunity in a complex microbial world: The pea aphid immune response in relation to both pathogens and symbionts” on Monday, November 9 in the Cox Science Center, Room 166 from 12:20 to 1:20 p.m. Gerardo’s research focuses on the evolutionary ecology of microbial host-parasite interactions. For more information about the event, e-mail [email protected].