Thorn is a species of humanoid being native to Dog's dream planet and Thorn have a tail. Thorn has met Tau'ri and they taught them their language and they live in a village inside the forest. In 2020s as part Thorn of a serious disease, and it was because of Gus common cold but they were cured of Draga who used their healing powers. Thorn is also adept at climbing trees. (INF: "Double Duty")