Myr
Native to Mirrodin. Myr are ant-like robotic creatures created by Memnarch, the plane's guardian. Each Myr on the plane is remotely connected to Memnarch's "Darksteel Eye," a massive, indestructible chamber that allows him to see through the eyes of any Myr he wishes. Scattered throughout the plane, the Myr are designed to be quiet and unobtrusive, and the majority of races have gotten used to their presence, viewing them as a strange but harmless background object. The majority of Myr conform to a particular standardized design composed of a slight, nimble body and a large, curved, mouthless head, though specialized models exist.
The word "myr" is derived from the Greek "myrmidon,” literally meaning “ant-people.” They were initially conceived as gnomes but the more flavorful label was later applied to these quietly busy little figures.
(Coretapper, Silver Myr, Eyes of the Watcher)
Read more about this topic: List Of Species In Magic: The Gathering