The inner jaw is capable of extending up to half a meter from the creature's head, although typically it is used only at close quarters. The piston-like appendage is incredibly powerful, easily capable of punching a hole through bone and even metal. It is chiefly associated with the creature's signature method of killing — the "Headbite", whereby the jaw is used to pierce the victim's skull and destroy the brain within. However, the jaw is not only targeted at the victim's head, and has also been used to deliver fatal strikes against other sensitive areas of the body, including the neck and chest. Xenomorphs have commonly been seen to pause before delivering a blow with the inner jaw; typically the creature will slowly peel back its lips and open its mouth, before the inner jaw suddenly sh