Using in-depth interviews with 74 men across different ranks in biology and physics at prestigious U.S. universities, the authors ask to what extent changing norms of fatherhood and a flexible workplace affect men working in a highly male-dominated profession and what variation exists in family forms. The authors conceptualize four typologies of men: those forgoing children, egalitarian partners, neotraditional dual earners, and traditional breadwinners. Findings suggest male scientists hold strong work devotions, yet a growing number seek egalitarian relationships, which they frame as reducing their devotion to work. The majority of men find the all-consuming nature of academic science conflicts with changing fatherhood norms.