I told a lie a couple of weeks ago. I didn't mean to and, honestly, it was with the best intentions - I need to set the record straight.
Yaks aren't the coolest mounts in the game.
Cloud serpents are!
Not only do they have a separate animation when on the ground despite still flying, they have an awesome animation for scratching themselves if you don't move.
Don't delay, get your cloud serpent today!