So what they're doing is working with seven breeds of primitive, hardy-looking cattle like that Maremmana primitivo on the top there to rebuild, over time, with selective back-breeding, the aurochs.
所以他们利用七个原始、强韧 和上图原牛相似的品种 利用筛选性的繁殖 希望可以让欧洲野牛重现