Lemmus trimucronatus the animal. We traveled a maximum distance of 165 feet (paced). This was with me following slow behind. Trapping for the next 6 days in this particular area (15 live traps - 20 put apart) failed to recapture this animal. Home range was larger than that indicated by following (or was changed by the lemming as it fell prey to a carnivore). The lemming fed in this manner: it clipped grass shoots near the base, grasped them in its forepaws, and ate from base to apex. I watched it feed from a distance of a few feet. The animal (probably aware of my presence) fed with its hind quarters remaining in a burrow. The lemming stretched itself to obtain the blade of grass. Escape technique: when hotly pursued, the animal ran as fast as its short legs and the tall grass would permit. It stayed largely in runways - and would dodge into a burrow frequently. When repelled the lemming from a burrow it ran a few feet then flattened out and lay still in a runway. I watched. Soon it began to sneak away - after a few feet, it ran again. I would guess that a fox, owl, or pike would have little difficulty in capturing these animals. If the lemming made it to a burrow, an