 The most common vocalizations of the Predators consists of a series of clicks, roars, snarls, and growls which consist of recorded vocalizations of animals such as lions, tigers, leopards, jaguars, cougars, black bears, grizzly bears, alligators, camels, and elephants.Predators will mimic human language on occasion, and have been shown to use their helmets to understand and speak human languages.Author Steve Perry designed a constructed language set for the "Aliens vs.