Vortigaunts are hive-minded creatures that have recently freed themselves from complete oppression by the creature known as Nihilanth. Unused to strong levels of individualism, they enunciate individuals (such as humans), by adding 'the' to their name. In appearance, a Vortigaunt is somewhat humanoid with two legs and two arms, but has an additional arm protruding from its chest. This extra limb is a feature also found in the other bipedal, sapient species from Xen, including the Alien Grunt and Nihilanth. This similarity, along with other shared features such as red eyes and back-jointed legs, is strongly suggestive of a common ancestry with other intelligent Xen lifeforms. Apparently, this third arm is used for feeding, as both Vortigaunts and Alien Grunts are often seen bending over sla