Neuroscientists know that pregnant mothers’ brains change in ways that appear to help with caring for a baby. Now researchers have identified changes in new fathers’ brains, too. — By Darby Saxbe, Associate Professor of Psychology, USC Dornsife College of Letters, Arts and Sciences & Magdalena Martínez García, Doctoral Student of Neuroimaging, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM)