Hi. Welcome to the tegu club if you are new! If not new, then still welcome! How young? What is the temp in the tank? Are you feeding inside or outside enclosure?More than likely he is just scared and needs to adjust to his new environment. I would give it a week. It is getting colder and they slow down on their activity when they are cold. If you have any more questions feel free to ask!I just got a baby tegu Tuesday, he won’t eat, and all he does is burrow. I’m wondering if I should be worried.