You must learn a special skill to tame ottuks. The skill is account-wide and the character that earns it doesn't have to be a hunter. Upon reaching Rank 11 Renown with the Iskaara Tuskarr, an NPC will appear and offer you a quest chain beginning with A Lost Tribe and ending with While the Iron Is Hot. The Ottuk Taming skill is taught to you with the completion of the final quest.
2 possible appearances:
Location:
Located in Clearwater Basin, Reedwhistle Bay, Ohn'ahran Plains.