Marriage and childbirth are what stop most female US graduate students from becoming tenured researchers, according to a report by Washington DC think tank the Center for American Progress (CAP) and the University of California, Berkeley, School of Law. Staying Competitive: Patching America's Leaky Pipeline in the Sciences found that married mothers with a PhD are 35% less likely to enter a tenure-track position in the sciences than married fathers with PhDs, according to a National Science Foundation survey. And they are 27% less likely than their male counterparts to get tenure after securing a tenure-track post. The report advises universities and funding agencies to create family-friendly policies, including six weeks of paid maternity leave and a week of paid parental leave.