Zath'ogs are a small, muscular species of warm-blooded reptile. Their skin is a dark green and rough, with microscopic scales all over their body. They are often found in groups of ten or more, communicating through telepathy. They usually eat meat, but some have been seen to eat vegetation as well. Zath'ogs are known for their meek, tentative temperament and are sometimes considered to be the "creepy-crawly" of the tundra. They are thought to be very intelligent and capable of complex problem-solving and reasoning, although research efforts to learn more about this ancient creature have all been stunted by unrelated onsets of serious illness.