The Anx were a large, reptilian species of bipeds native to the planet Gravlex Med, a high gravity world located in Anx Space on the Outer Rim Territories. The Anx were a bipedal, reptilian species discernible by their height, their tall crests, and their tails. From a world with higher-than-average gravity, the Anx possessed a stooped stature and long necks. Their heads were tall and blade-shaped, with a soaring crest which acted as a sinus cavity. While their crests changed color to reflect their moods, its primary function gave Anx a low rumbling voice. The language which developed on Gravlex Med was one of loud, low-frequency noises that they could use to communicate across distances of several kilometers.