Predator (fictional species) which are consisted 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. Predator" novel series. Predator (fictional species) The Predator (also known as Yautja or Hish-Qu-Ten) is a fictional extraterrestrial species featured in the "Predator" science-fiction franchise, characterized by its trophy hunting of other species for sport. First introduced in 1987 as the main antagonist of
Predator (fictional species) and which drives them to hyper-aggression. When this gland is over-stimulated, it sends the creatures into a frenzied rage, causing them to attempt killing any living thing in sight, including members of their own species. This "kill rage" can be contagious and spread from one Predator to another, driving them all to attack each other. The Predators as a species barely survived the wars provoked by their kill glands, and they have learned to control the gland's secretions with artificial hormone regulators. In Ian Edginton and Alex Maleev's graphic novel "Aliens vs. Predator: Eternal" and the videogame "Predator: Concrete Jungle",