A Ravager-Strain Xenomorph is a morphological mutation purposefully bred only in a state of war between the hive and the host species. These massive beasts are evolved from the Praetorians, and more purebred compared to other subspecies.
The one drawback of this caste is that Ravagers are built to instinctively decapitate their foes, preventing them from being harvested by Facehuggers.
Their chitinous armor stops all but the heaviest caliber bullets. More advanced breeds of Ravager, when heavily wounded, can enter a healing state where they recover until they are capable of fighting once more.
- AvP: Extinction