Cave-dwelling bovines found across the northern hemisphere (mainly in the massive super cave system known as the Underdark), the Guttar took their name from an old Dwarvish word meaning “thunder”, because of the rumbling echoes the herds make as they move through the caves. They have short, coarse hair and large, rugged bodies, no eyes, external ears, or horns, and only possess two limbs.

They shy away from bright sunlight and do not willingly venture outside into broad daylight, although light from a torch, fire, or the various bioluminescent fungi and creatures of the caves does not bother them at all. They graze on subterranean fungi and plant life, even those usually hazardous to other animals. Herd size varies depending on available grazing. Herds can be as small as ten individuals, whereas some of the larger caverns boast herds numbering hundreds.

Their sense of smell is also important in communication within the herd. Because echoes in the tunnels can be deceiving, the Guttar uses a musk to relay emotional states rather than vocalization. Depending on the situation, different chemical combinations within the musk can communicate fear, danger, dominance, calm, or a desire to mate.

Despite their simple way of life, Guttar are incredibly intelligent and philosophical, pondering the questions of the universe. They yearn for knowledge, and may spend hours thinking on many subjects... a task made easier by the second brain housed within the hump on their back.

Guttar seek to avoid combat in most cases, but are also powerful Psionics, using their combined mental abilities to viciously fight any who dare attack them.