Aurochs (Bos primigenius) This is a primitive bull with hollow horns. Notable for very strong physique and great physical strength. The meat and skins of these animals were very much appreciated by people, this was the reason for their complete disappearance. In 1627, the last representative of the tours was exterminated. With the advent of cloning technology, there is the idea of creating a clone tour based on DNA extracted from bones.