Vortiguant

The Vortigaunts (taxonomic designation: Xenotherium subservilia[2] or "Subservient Alien Beast"), formerly known as "Alien Slaves", "Xen Slaves", or more affectionately known as "Vorts" by their allies, are species of sapient alien found throughout the Half-Life series. Long before the Black Mesa Incident, the Vortigaunts' homeworld was invaded by the Combine, forcing the survivors to flee to Xen, only to be enslaved by Xen's master: the Nihilanth. When the Incident occurred, the Nihilanth viewed an opened rift as a chance to escape the Combine and directed the Vortigaunts to invade Earth. Following the Nihilanth's death, the Vortigaunts have allied themselves with the human-led Resistance in their bid to overthrow the Combine's rule over Earth.[2] Overview: Vortigaunts are very intelligent and social creatures; often seen in pairs or groups, they can develop intelligent strategies. When faced with a superior enemy, they will either retreat, or, if possible, group together to form a stronger force.[2]