Definition: Organisms whose cells have a nucleus enclosed within membranes. Symposia: Ancient DNA: New RevelationsComparative Anthropogeny: From Molecules to SocietiesHumans: The Planet-Altering ApesImpact of Infectious Disease on Humans & Our OriginsMismatch: Human Origins and Modern Disease The Idea OrganWe Are What We Ate: The Diets That Fueled Human Evolution