Dogs Have Been Surprisingly Diverse for More Than 10,000 Years, New Research Suggests
两项研究让科学家们更全面地了解早期狗与人类一起迁徙到世界各地时是如何被驯化的
The Incredible Diversity of Dogs Began More Than 10,000 Years Before Modern Breeds
远古的狗迅速多样化，比维多利亚时代的饲养员培育出今天的极端品种早了数千年。
