古印度

He was one of the world´s foremost scholars of ancient Indian culture.

他是世界上最优秀的古印度文化学者之一。

The first, Paleo-Indian, wave more than 15,000 years ago was ancestral to all Central and South American Indians.

在一万五千多年前进行第一次迁移的是古印度人，他们是美洲中部和南部的印第安人的祖先。

Still, Krech attributes secondary if not primary responsibility for the extinctions to the Paleoindians, arguing that humans have produced local extinctions elsewhere.

克雷奇仍然认为古印度安人在灭绝上的责任即使不是主要的，也是次要的，他认为人类在其他地方造成了当地物种灭绝。

According to Turner, this ties in with the idea of a single Paleo-lndian migration out of North Asia, which he sets at before 14,000 years ago by calibrating rates of dental micro-evolution.

根据特纳的说法，这与单一的古印度人迁出北亚的想法是一致的，他通过校准牙齿微进化的速率，将其设定在14000年前。

The answer lies in the old Indian caste system.

答案在于古印度的种姓制度。