Bonobo moms play an active role in helping their sons find a mate
(PHYSorg.com Biology)

Many social animals share child-rearing duties, but research publishing May 20 in the journal Current Biology finds that bonobo moms go the extra step and actually take action to ensure their sons will become fathers. From physically preventing other males from mating to bringing their sons in close proximity to ovulating females, bonobo moms bring new meaning to the notion of being overbearing-but in so doing, they increase their sons` chance of fatherhood three-fold.