translation.en: Because of the Earth tilting on its axis and those catastrophic climate shifts, we had to figure out how to find better food, and we had to learn -- there's Lucy; that's how we all began -- we had to learn how to crack open animal bones, use tools to do that, to feed on the marrow, to grow our brains more.
translation.zh: 因为地球倾斜的地轴 和灾难性的气候变化 我们得弄清楚如何找到更好的食物 我们得学习－这是露西，我们的起源－ 我们得学习如何使用工具来 砸开动物的骨骼，以食用骨髓 来是我们的大脑得到发育