This route would have enabled humans to enter southern areas of the Americas prior to the melting of the continentalglaciers.
这条路线将使人类能够在大陆冰川融化之前进入美洲南部地区。
2
They could trace the growth and shrinkage of continentalglaciers, even in parts of the ocean where there may have been no great change in temperature—around the equator, for example.
他们可以追踪大陆冰川的生长和收缩,即使是在温度变化不大的海洋区域——比如,赤道附近。
3
Continentalglaciers can move as fast as 33 meters each day.