The Mirthisk is a predatory species resembling a sheep with large horns and a long tail. Although considerably docile when full, they turn into fierce, persistent hunters. They will target a singular prey until they get their meal. Even if another predatory species catches their prey, they will steal it back. Male Mirthisk are very territorial, oftentimes butting horns with fellow males in order to win more territory or chase them off. They are very intelligent, but often prefer to solve problems with brute force. Female Mirthisk are more docile compared to their male counterparts, and can be often found in large herds almost entirely composed of females. However, if their young or their mate is harmed, they will hunt down who hurt their loved one and not stop until the offender is dead. Males and females often mate with other species, specifically predatory ones, to produce stronger offspring. However, they usually prefer to stick with their own species to avoid interspecies tension.