Great early defense. To tame them, it is best to get above them, as their acid spit cannot be shot at steep angles, especially when they are right below you. I have found it best to just jump on a rock. Note that if this creature runs away, it will soon turn around and come charging at you due to its strange behavior.
1.kill some dilos, dodos or compy so that you can collect meat.
2.Craft a slingshot, wooden club or you can beat it with fist (If your trying to knock it with fists choose a low level one; if with slingshot collect a amount of stones first also remember wooden club breaks fast so craft and keep atleast 3 more wooden club for backup)
3.Find a dilo
4.after it's unconscious open its inventory by going near to it and tap and hold. After you need to put some meat which we collected at first
5. Wait.....if your dilo eats all the meat but still not tamed put some more meat to its inventory and wait......