Popos are herbivores that are very docile creatures and will run when one of their members in a group is under attack or when a Wyvern enters their area. They will also group together when a large monster is near, like the Aptonoth in more temperate climates. As with the Aptonoths, Popos are one of the most adaptable herbivorous creatures in the multiverse and could be found on several universe outside of their homeworld.
Popo's thick fur keeps it warm in the cold mountain climate. Popo have especially thick hair covering its eyes to protect them from driving snow and ice. Large hooved feet disperse its weight evenly so it doesn't sink in deep snowdrifts. Popo's large tusks are used in self-defense against larger threats, and help Popo dig up plants buried deep under the snow. Males grow larger than females.
Popo are mostly mild tempered until provoked. Popo can be docile enough to be domesticated though still aggressive enough to attack potential threats.