Tamed my first ever Rex tonight on the island. Down south where the recommended spawns are. Found him wrecking havoc on everything. Pumped a bunch of tranqs into him and he finally went down. There were all types of aggressive dinos wandering around so I had my Carno take them all out while I wait for the tame. Once it was completed, I was so happy...until I had to make the run all the way back to my base..to the far west near red obelisk lol. It was worth it. Now to find a female to start breeding and getting ready for broodmother