Recent evidence favors a rival to the long-standing theory that the Americas were colonized 11,000-12,000 years ago by people migrating south from Beringia along a midcontinental ice-free corridor.

最近的证据支持了一个与长期存在的理论对立的观点，该理论认为，在1.1万至1.2万年前，美洲是由从白令海峡沿中大陆无冰走廊向南迁移的人殖民的。

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From here it was one long road south with everyday getting that little bit warmer – or so the theory went.

从这里开始我们将一路向南，天气也将一点点暖和起来，至少理论上是这样的。

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