The Reek is a large and muscular herbivore native to Ylesia. While generally slow-moving and sedate, Reeks could become hostile when provoked, and when starved, their normal brown and yellow color would change to a deep red and they would prey on other creatures. Heeks had a stubby tail, a low center of gravity, and three horns on their heads, one on each cheek and one on its forehead. Famously, Geonosians would keep aggressively trained Reeks for use in their fighting arenas.