making it a sanctuary of stability. 使其成为稳定的避难所

186. but still exists today.
     但如今依然存在
187. It owes its success to the deep ocean's unchanging nature.
     它的成功要归功于深海的稳定性
188. Below 600 meters, the temperature rarely fluctuates,
     在600米以下 温度几乎没有波动
189. making it a sanctuary of stability.
     使其成为稳定的避难所
190. When the Ice Age struck,
     当冰河时期袭来时
191. all kinds of animals headed into the abyss.
     各种动物都朝深渊前进
192. But it's the cephalopods who have thrived.
     但头足动物却蓬勃发展

来自《我们星球上的生命 第一季 第二集 Life on Our Planet S01E02 第一前线》第 189 行