We freed ourselves from the uncertainty of a hunter-gatherer existence 我们通过与大自然结盟
Long before the existence of birds, 在鸟类出现之前很久
the planet has pushed life to the very edge of existence. 地球将生命推到了灭绝边缘
Most large fish have been fished out of existence, 大多数大鱼已经被捞光
They contain thousands of species whose existence remains a mystery to us. 在它之中的上千种生物仍然是个谜
And exists only through the existence of another being. 只能通过其他事物的存在而存在
Mountain animals survive on the very edge of existence. 山地动物就这样挣扎在存活的边缘
but most have now adopted a land-based existence. 但绝大多数品种现在已经适应了陆地上的生活