From the writer/producer of television hits like House of Cards and In Treatment comes this smart and compelling new play about science, family, and survival of the fittest. Two women meet for the first time on the eve of a national conference. Both are brilliant evolutionary biologists who share a zeal for science and a bold, contrarian approach to their male-dominated field—even as one challenges the other with a radical new theory that may change the way people regard sex. As mysteries unfold about their relationship, the two scientists clash over differing views on evolution, feminism and generational divides in modern America.