Competitiveness and sacrifices collide in "The How and the Why", a new play that tackles the challenges needed to succeed as a woman in science. On the eve of a prestigious conference, acclaimed evolutionary biologist Zelda is visited by ambitious grad student Rachel. The pair share a zest for science and a desire to change the male-dominated field. During the visit, the young scholar challenges the older woman's theory about how people regard sex. The Nora Theatre Company presents the New England premiere of this bold production from writer Sarah Treem (HBO's "In Treatment") that will leave you talking long after the show is over.