 As in some other species of monkeys, the acoustical structure of greater spot-nosed monkey alarm calls it has been argued to vary according to the kind of predator spotted.The monkey reportedly combines different sounds into a sequence, which has an entirely different meaning from the sounds out of which it is made.For instance, the sound "pyow" alone means another animal, like a leopard, is lurking nearby, and "hack" means a flying animal, like an eagle, is flying nearby, but when the two are combined, as in the sequence "pyow pyow hack hack hack hack", they have an entirely different meaning