Luiza, a postdoc in Whitehead Institute Member Peter Reddien's lab, is developing a regenerating slug as a model species to investigate the molecular mechanisms involved in regeneration and ultimately help to understand why some animals can regenerate while others cannot. Saad, who is also a Pew Latin American Fellow, grew up in the coastal city of Santos, Brazil, and was always fascinated by marine life. "We'd go to the beach every day after school," she explains. "I've always been curious about the shells and tiny creatures making bubbles in the sand. Observing these things fueled my curiosity and desire to understand what I see, which has heavily influenced me."