A s'tarahk was a (primarily) herbivorous quadraped native to Qo'noS, used by Klingons in preindustrial times as a riding animal and beast of burden. A group of the animals were called a s'tarahkmey. They had short tusks to assist them in accessing some food sources, but otherwise could be summarized as the "Klingon horse". (TNG novel Kahless).

This beast's guts were also used to string tran'nuc. (ST - New Worlds, New Civilizations short story: "A Warrior's Path")