Those damn filthy apes. They have apparently infiltrated our society and have learned how to crack our nuts...
While not conclusive, his [ Dr Antonio Moura's] research adds to a mounting body of evidence that suggests other species have something akin to human culture. A strong case has already been made for great apes having a capacity for social learning, with chimpanzee traditions such as Masonic-style handshakes, mutual back scratching and cracking nuts with hammers, but until now there has been no evidence of material culture among the "new world" primates of Central or South America, which include Capuchins.
Those damn filthy chimpanzees.
Interesting article, I'm just not really sure how Chimps holding each others hands equates to Masonic grips, but it made for an amusing read.