Can be tamed.

Family:Stone HoundExotic family. Beast Masters only!
Name:Retains original name after taming.
Zone:Kun-Lai Summit
Exotic family: Beast Masters only, minimum level 39.Exotic Family
Can only be used by hunters in the Beast Mastery spec. Minimum level 39 in Shadowlands.
Location & Notes:

Located in Seeker's Point, Kun-Lai Summit. Yao and its companion, Yachi, spawn during the quest The Tongue of Ba-Shon, which is part of the Kun-Lai Summit quest chain. It can be tamed by someone other than the quester.