Megan N. Williams is a doctoral candidate in the Psychology department at the University of Pennsylvania. She is a member of the Human Behavior and Origins Laboratory. Her research explores the involvement of olfaction in human decision-making. For example, what information is conveyed via body odor and how does that information affect mate value assessments? In addition to laboratory experiments, Megan is also involved in fieldwork with the Hadza, a population of hunter-gatherers living around Lake Eyasi in northern Tanzania.