科学家们至今已识别出了700多个样本，其中包括：一个史前美洲豹的头盖骨以及袋狼、剑齿虎、大地懒、野牛的骨骸。
Scientists have so far identified more than 700 specimens, including the skull of a prehistoric American lion and the bones of dire wolves, saber-tooth cats, ground sloths and bison.
在美洲大陆上的人类文明可能开始于上一个冰河世纪，史前猎人在当时穿过了亚洲和美洲大陆之间的大陆桥。
Human civilization in America probably began in the last ice age, when prehistoric hunters crossed a land bridge between the Asian and American continents.
不过，这一地点依然开启了一扇窗，让人们能够了解所知甚少的美洲史前状况。
Still, the site does open a window into a poorly known period of American prehistory.
阿纳萨齐的意思就是“古人”，这个名字是指史前的一种美洲当地人，当年他们居住在美国犹他、亚利桑那、新墨西哥及科罗拉多这四个地区的交界处。
Anasazi, meaning "ancient people," is the name given to prehistoric Native Americans who lived in the Four Corners region of the United States, where Utah, Arizona, New Mexico, and Colorado meet.
科学家们认为这些迁居者通过一条史前时期曾经存在的大陆桥穿越北极地区的白令海峡到达美洲。
Scientists believe that these settlers crocced the Bering Strait in the Arctic to America by means of a land bridge which existed in prehistoric times.
我们所知最古老的十字形形式，这个形式可以追溯到史前时期，而且在世界各处都有，包括美洲土著印第安人。
The oldest known version of the cross, dating back to prehistory and found all over the world, including among the Native Americans, is the swastika5 .
我们所知最古老的十字形形式，这个形式可以追溯到史前时期，而且在世界各处都有，包括美洲土著印第安人。
The oldest known version of the cross, dating back to prehistory and found all over the world, including among the Native Americans, is the swastika5 .
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