How to tame a Rex

Step 1 find a Rex

Step 2 bring tranq darts or tranq arrows whatever you prefer

Step 3 bring naracotics

Step 4 knock it out

Step 5 give it prime or reguler if you have no prime

Step 6 wait for it to tame and surround it with wooden spike walls to be safe

And boom the Rex should be tamed oh and when you find it probably make a trap these guys are strong