Once the presence of a suitable host has been established, the Facehugger is revived in minutes. Dormancy chemicals are replaced with neurological stimulants preparing the creature for action. Propelled by a muscular tail, the beast launches itself at the host's face, clamping itself into position, rendering the host unconscious and inserting an opvipositor down the victim's oesophagus. Despite the violence of the attack, the host is kept alive. Once the Embryo is placed, the Facehugger dies.