At a hotel in Columbia, a squirrel monkey has found a new way of getting to tree tops, thanks to its friendship with a pair of parrots. Rather than scaling the trees, the primate simply latches on to the back of one of his airborne buddies and enjoys an easy ride. While this sort of kinship is rare in the wild, it's becoming increasingly pervasive when animals of different species are kept in captivity. More on the story here.