The Gorn are a fictional extraterrestrial humanoid reptilian species in the American science fiction franchise Star Trek. They first appear in the original series episode, "Arena" and are hostile to humans; this may be due to in-universe territorial disputes as to which planets can be colonized by which species. Gorn were a cold-blooded, reptilian species with green, rubbery skin, red blood and an average height of approximately two meters. They tended to be many times stronger than most humanoids, albeit slower and less agile but with greater stamina and, like most cold-blooded species, preferred warmer temperatures. The Gorn's first contact with the prime reality Federation took place in 2267, when the Gorn attacked a Federation colony on Cestus III. The Gorn saw the strike as a preemptive move, since they regarded the Cestus system as part of their territory. The USS Enterprise pursued a Gorn starship from Cestus III into a previously unexplored region of the galaxy, near 2466 PM. There, both starships were immobilized by the Metrons, who transported James T. Kirk and the Gorn captain to a planet's surface, where the two captains were instructed to settle their differences in a "contest... of ingenuity against ingenuity, brute strength against brute strength." Although the Gorn captain was physically stronger than Kirk, Kirk was able to construct makeshift cannon out of materials on the planet's surface and defeat the Gorn. When Kirk showed mercy to his defeated opponent, the Metrons sent both captains back to their respective ships and transported the Enterprise out of the area. (Star Trek Episode: "Arena") Instinct: Dominate

• Attack invaders!
• Alien Lifeform