This guide handles the Taming the Beast quest chain from the point just right before Thotar will give you a taming Rod for the Dire Mottled Boar in Razor Hill. Thotar will give you a number of 3 taming rods, each differs and will allow you tame beasts in the next order: Dire Mottled Boar, Surf Crawler and eventually an Armored Scorpid.

Once you've completed the taming Component of the Quest chain, you have got to head to Orgrimmar and speak to Ormak Grimshot during the Valley of Honor as a internet way to unlock your companion pet handling abilities: Tame Beast; Feed Pet; Revive Pet; and Beast Training.

Eventually, don't forget to visit the Pet Trainer and get the Pet capabilities that you will need to give to your pet.