The ursadon thrives in the snowy frozen wastelands of a ice worlds, and possess no natural enemies. These carnivorous animals hunt in the icy water for food. Instances of attacks on humans are rare, but the few recorded instances of an enraged ursadon attack have always ended in tragedy. The Koprulu Wilderness Society recommends keeping a safe distance from ursadons, for the safety of both the observers and the animals. Nonetheless, terran sport hunters would often hunt ursadons.
Two different breeds of ursadons have been observed. The first is more bearlike, with a beak-like mouth, black tusks and a bulky, round frame, similar to a bear. These have been spotted on the planet Braxis as well as other scattered ice worlds. The second known breed existed on Kaldir, and were more ape-like and muscled, with white teeth-like tusks, and used two large front arms to "walk" and attack enemies. This breed could resist the "flash freezes" of Kaldir, and were lead by ursadon matriarchs.
Ursadons have been found on a dark moon that Dark Prelate Zeratul encountered on one of his journeys. Three were subjected to experiments by Clandestine Mercenaries, causing a broodling to emerge from one of their stomachs upon death.
During the Second Great War, a protoss base on Kaldir, a planet where ursadons could be found, was attacked by the zerg. In order to avoid the flash-freeze effects, Sarah Kerrigan ordered her troops to slay an ursadon matriarch and use its DNA to enhance her zerg ability to withstand the extreme cold. The protoss researchers who fled Kaldir kept giant ursadons as test subjects on one of their ark shuttles.
Ursadons are the only critters in StarCraft to leave a corpse.
Ursadons can "leap" down cliffs. They became especially aggressive during flash freezes, and packs of them will spawn and attack protoss and zerg indiscriminately.
The ursadon charges towards nearby enemies. Can be set to autocast.
- In order to access the free minerals/gas cheat in StarCraft 64, the player must surround an ursadon which asks for a "hug" with his units.
- The ursadon is also a popular critter in tournament maps - one is usually included on them. Tournament commentator Nick Plott has nicknamed the ursadon "pandabear guy" - the name has stuck quite persistently.
- In Legacy of the Void Patch 3.5.0, a Feat of Strength named Legacy of the Ursadon was added for killing an ursadon in a multiplayer game.