well – best website I’ve seen in a while (here)
At a research site in Fongoli, Senegal, a female chimpanzee breaks off a branch, chews the end to make it sharp, and then uses this rudimentary spear to skewer a tasty bush baby hiding inside a hollow tree. It’s an astonishing breakthrough for primate researchers—the first time anyone has documented a chimpanzee wielding a carefully prepared, preplanned weapon.
Her arms look more muscled than Roger Federer’s thighs.
I think her arms are bigger than any male tennis player’s arms.
Australian Open 2013