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