Well, I always did say Bonobos were more evolved than humans. Seems I was right:
Amoung other things, it also turns the whole savannah encouraged upright walking theory on it's head.
Yet the males of her species also had the small canine teeth that distinguish humans from great apes.
This dental detail, says Lovejoy, is a key clue to the walking mystery.
Male apes with small canines were less capable of fighting off competitors, Lovejoy says, and would have to offer females something more for mating favours.
"Instead of males gaining access to females by threatening other males ... they're getting access to females by providing them food," he says. Upright walking made it easier to carry that food through their woodland environment.
"So the whole savannah theory (of walking) is now gone as well."
Perhaps as startling is the enfolding of evolutionary psychology with paleantology.
Good thing we have small canines, I expect much fighting over the extrapolations.