
The male groath stands lookout on a prominent rock, alert for signs of danger.
The groath, Hebecephalus montanus, is a small hornhead frequently found grazing on grassy, south-facing slopes of the African-European Mountains. It has sexual dimorphism that is just as strange as Prolibytherium.
It lives in small herds of four or five females, guarded jealously by a male. The most apparent difference between males and females is in their horn structure. The males have flat, bony plate-like horns which they use to buffet one another in their frequent fights for herd dominance. The females' pointed pyramidal horns are much more deadly and are used to defend themselves and their young against predators. While the herd grazes, the male normally stands on a promontory watching for signs of danger. When he sees an intruder the male signals by erecting his long, flag-like tail and the herd makes for the shelter of a nearby crag or cave.

Although female groaths are well equipped to defend themselves, they will not normally fight unless forced to do so.
The groath's principal enemy is the shurrack.
In winter, when the snows come, herbivores such as the groaths move to lower levels of the mountain altitudes to find shelter and grazing. The carnivorous animals, dependent on them for food, closely follow the herds on their seasonal migrations.