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. 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 it by Draga who used her healing powers. Thorn are also adept at climbing trees. (INF: "Double Duty")