Rat mothers are not the only ones whose brains become sharper, making them more efficient foragers and more courageous and level-headed than females without offspring. Lambert has found that the same is true of fathers’ brains. Fatherhood makes the male California deer mouse smarter, too.
Anyway. Whatever. I gave up on Mr. Urban Daddy years ago. What really interested me about the study was how Kelly Lambert actually studied the rat brains:
[Lambert] anesthetizes the animals, carefully removes their brains, firms the brains up with formalin, freezes them, then shaves them into slices thinner than a strand of human hair to study under a microscope.
Brain slices thinner than a strand of human hair? Gives 'hair brained' a whole new meaning...
Read more: With exposure to babies, rodent dads’ brains, like moms’, become wired for nurture