A facehugger is a fictional creature from the Alien franchise, known for its role in the life cycle of the Xenomorph. It is a small, spider-like organism that attaches itself to the face of a host, using its long, flexible legs. The facehugger's primary function is to implant an embryo into the host's throat, ensuring the survival of the species. Once the embryo is implanted, the facehugger detaches and dies, leaving the host to eventually give birth to a fully formed Xenomorph. This process is a key element of the horror and science fiction themes in the Alien series, highlighting the terrifying nature of the creature's reproductive cycle.