has not been felt for 66 million years. 已经是6600万年前的事了
is heating our planet faster than at any time in the last 500 million years. 正在以五亿年来从未有过的速度 令地球升温
stable sanctuaries for life for over 50 million years, 为生命提供稳定的庇护所 超过5000万年
So when the Ice Age hit two and a half million years ago, 所以 2500万年前 当冰河时代突然袭来之时
allowed their primate ancestors to survive in the forest of 50 million years ago. 使它们的灵长类祖先 能够在5000万年前的森林中存活下来