Chimps are sticking grass and sticks in their butts, seemingly as a fashion trend

A group of chimpanzees in Zambia have resurrected an old fashion trend with a surprising new twist. Fifteen years after a female chimpanzee named Julie first stuck a blade of grass into her ear and started a hot new craze among her cohort at the Chimfunshi Wildlife Orphanage, an entirely new group of chimps at the refuge have started doing the same thing. 

"We were really shocked that this had happened again," Jake Brooker, a psychologist and great apes researcher at Durham University in England, told As It Happens host Nil Kӧksal. 

"We were even more shocked that they were doing their own spin on this by also inserting the grass and sticks in a different orifice."