The aurochs is an extinct cattle species, considered to be the wild ancestor of modern domestic cattle. With a shoulder height of up to 180 cm (71 in) in bulls and 155 cm (61 in) in cows, it was one of the largest herbivores in the Holocene; it had massive elongated and broad horns that reached 80 cm (31 in) in length.
Aurochs
Illustration by Sigismund von Herberstein captioned: Urus sum, polonis Tur, germanis Aurox; ignari Bisontis nomen dederant; translated: "I am Urus, Tur in Polish, Aurox in German; the ignorant ones gave me the name Bison".
Aurochs skeleton from Zealand island in Denmark on display in the Natural History Museum of Denmark
Drawing based on an aurochs bull skeleton from Lund and a cow skeleton from Cambridge, with characteristic features of the aurochs
Bos is a genus of bovines, which includes, among others, wild and domestic cattle.
Bos