Nathak

Nathak are scavengers which are mentioned several times in Mass Effect but never seen. They appear to live out on Noveria; Lorik Qui'in tells Commander Shepard that there's nothing outside Port Hanshan but the snow and the nathak. The well-travelled Wrex seems to be familiar with them, claiming the dead salarian near the tram access at Central Station will soon be eaten by nathak and there's no point burying him. He also uses them as an analogy for attacking the gatehouse on Therum which is heavily defended by geth turrets, saying you don't tackle a nathak head-on, "you sneak around and pull its tail".