- perhaps it's no surprise that squid have mastered this cold, dark world.
鱿鱼称霸这个寒冷而黑暗的世界 也许就不令人意外了 - But for those who lived back in the Ice Age,
但是对于生活在冰河时期的生物来说 - things were beginning to heat up.
局势开始升温 - 200,000 years after the big freeze,
大冰冻的20年之后 - there appeared in the ice a vein of blue.
冰中出现了一条蓝色血管 - Water.
水 - Carbon dioxide levels had bounced back,
二氧化碳水平回升
200,000 years after the big freeze, 大冰冻的20年之后
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