Space Cow

Space Cows are oxygen-breathing herbivores with four legs and two small arm-like forelimbs. They are unofficially named "Space Cows" after the Shifty Looking Cow found on Ontarom. These creatures have a dialog option that does nothing.

Space Cows naturally graze in herds. There are wild herds on Chasca, Nodacrux, Ontarom in Mass Effect, as well as on Aite in Mass Effect 2.

In a humorous moment, during the Overlord DLC, you encounter two Space Cows while flying the Hammerhead through a grassy field. If killed (whether through ramming or missiles), the Hammerhead VI remarks "Defenseless herbivores are no match for guided missiles."