A study conducted in Ivory Coast suggest that they do!
Male chimps that are willing to share the proceeds of their hunting expeditions mate twice as often as their more selfish counterparts.
This is a long-term exchange, so males continue to share their catch with females when they are not fertile, copulating with them when they are.
Female chimps are lazy apparently don’t hunt much so for them it’s hard to come by meat for their much-needed protein. So the males go out, hunt, bring back the bounty and otherwise outdo themselves for the ladies, knowing all too well that their efforts are not in vain. Well, well :).
The reseachers believe they’re onto something; that this study “could lay the foundations for human studies exploring the link between good hunting skills and reproductive success“.
Really. I couldn’t help but think that there’s some correlation in there somewhere..