It is an all-too-common scenario—a baby is up all night crying, and an exhausted mother gets in and out of bed to care for the infant. The father sleeps soundly next to her, seemingly oblivious to the ...

It's a well-worn trope that mothers will wake at the slightest stir from their baby while fathers peacefully doze on. But scientists now say that dads have no excuses for missing midnight nappy ...