A Dolyak is a huge heavily-coated bovine animal with two pairs of horns on its head. It is currently unknown whether Yak is an equivalent term for Dolyak, or if one is a subspecies of another, but Yak's Bend is apparently named after the dolyaks found in the area. As far as is currently known, lone dolyaks are not capable of being targeted, and thus cannot be Charmed into a pet. In the GW:EN expansion pack, untargetable immobile Dolyak NPCs are found within herds of Berserking Bison, suggesting that the two are related (as they do share many physical characteristics) and may even interbreed.