Xenomorphs are fictional extraterrestrial creatures from the Alien franchise, created by artist H.R. Giger. They are known for their distinctive black exoskeleton, elongated heads, and double jaws. Xenomorphs are often depicted as highly aggressive and intelligent predators, capable of adapting to various environments. These creatures reproduce through a parasitic life cycle, where they implant embryos into a host organism. Once the embryo matures, it bursts from the host's chest, leading to the host's death. Xenomorphs are often portrayed as the ultimate survivalist, showcasing traits like stealth, speed, and resilience in their quest to hunt and survive.