Dads' Brains React Differently to Sons and Daughters

Dads with toddler-age daughters interact differently with their kids than fathers with toddler-age sons, a new study suggests.In addition, their brains' responses to their tots' pictures differed from those of dads with sons, according to the findings, which were published May 22 in the journal Behavioral Neuroscience.The findings indicate that gender-based differences in fathers' behaviors appear to show up while children are very young, said lead study author Jennifer Mascaro, an assistant pro