On Taming Hydra's in WoD ?

[whuumper]

Is this a pet we can just go and tame or is there a special item.that we will need to acquire an learn. As in the Tome of DireHorns.
Been asked by alot of Hunters on my realms.So I poise this to you who have traveled there on Alpha.
I plan to hit the ground running an get one asap,but not sure myself?

[Vephriel]

You can just go out and tame one once WoD hits, they're not exotic either. No special requirements!