The staplarint existed as an omnivorous creature that lived in trees; a type of omnivore that favored arboreal habitats. Settlers from the Republic brought staplarints to the world of Brosi.
The staplarints' purpose diminished when repulsorlift technology became common. Numerous staplarints fled and established themselves in the wild. By the era of the Galactic Empire, they had lived for hundreds of years in Brosi's wilderness.
Nevertheless, the Brosin Underground succeeded in domesticating some staplarints and employing them as riding animals circa 2 ABY.