The sturmbeest is one of the main sources of animal products for the Na'vi. As such, sturmbeest are a primary organizing force in clan culture. A number of different clans extol the virtues of the animal in textiles, music, song, dance, and art.
Sturmbeest are herd animals. They are extremely social and highly protective of their young. They are also territorial and will mass for attack against any would-be predator. When the predator is too large or in too many numbers, they will stampede, often breaking off into smaller packs for evasion. (A sturmbeest stampede has been described by one RDA mine worker as being "as loud as a Valkyrie liftoff.")
The colorations on the body is lighter blue on top fading into darker purples and blacks toward the bottom. The male is usually about fifteen percent larger than the female, and has a bigger ridge bone on its back. The male also has a dramatic top horn that is used for defense and in mating contests against other bulls.
Their brain mass to body weight ratio is low, and the creatures are slow to react and slow to stop reacting. The young, old and lame are prey only to the largest or fiercest predators, such as viperwolf packs, the thanator and occasionally a large leonopteryx.