Sources : Duran

Thomas of Cantimpré [circa 1200-1272 CE] (Liber de natura rerum, Quadrupeds 4.31): Duran is an animal, as Aristotle says, cruel, swift, and very strong. When this animal is chased by hunters and in despair, seeing that it cannot escape, with natural cunning turns itself very strongly against the pursuing dogs using its dung to retard them by the rottenness of the digestion and the smell. - [Badke translation/paraphrase]