This video handles the Taming the Beast quest chain from the point just before Thotar gives you a taming Rod for your Dire Mottled Boar in Razor Hill. Thotar provides you with a number of 3 taming rods, every one is different and will allow you tame beasts in the next order: Dire Mottled see this Boar, Surf Crawler and finally an Armored Scorpid.

After getting finished the taming Element of the Quest chain, you must head to Orgrimmar and speak to Ormak Grimshot from the Valley of Honor to be able to unlock your companion find more info pet managing abilities: Tame Beast; Feed Pet; Revive Pet; and Beast Training.

Eventually, remember to visit the Pet Trainer and grab the Pet capabilities her latest blog that you will need to give to your pet.