You should not go to the red woods and find one of this boys if you just started playing I recommend you try to get one of this when you’re level 100+ and take some harpoon tranquilizer and or tranquilizers darts and set big bear traps then make the Thylacoleo chase you and take it to the bear trap and then once the Thylacoleo is trapped use the harpoon tranquilizers or the tranquilizer darts and the set more bear traps around it and take a few steps back and wait. if you didn’t tame it repeat the process each time you don’t tame it, and then you will be don