The process is self-enlarging, unstoppable, and once the ice is really growing it moves, says McPhee. You have advancing glaciers and an ice age.

“这是一个不断自我扩大的过程，而冰盖一旦形成，它就开始移动。”这样，就有了移动的冰川，也就进入到了一个冰川时代。

The Iberians after the Ice Age still carried a great deal of ancestry from the Fournol people who had arrived there thousands of years before the glaciers advanced.

冰河时代后的伊比利亚人仍然保留着福诺尔人的大量血统，福尔诺尔人在冰川推进之前数千年就到达了那里。