The buildup of ice in the north affected the climate across the planet. 北方冰冻影响全球气候

130. a trait that, in time,
     这一特征
131. would lead to one species of primate
     有朝一日会导致一种灵长类动物
132. achieving global domination.
     取得全球主导地位
133. The buildup of ice in the north affected the climate across the planet.
     北方冰冻影响全球气候
134. But just as life got used to colder, drier conditions,
     但就在生命逐渐适应 更寒冷、更干燥的条件时
135. everything changed.
     一切都改变了
136. The ice began to melt as Earth's orbit shifted once more
     随着地球轨道再次发生变化 冰开始融化

来自《我们星球上的生命 第一季 第八集 Life on Our Planet S01E08 冰与火的世纪》第 133 行