Already, the sixth mass extinction event has affected 75% of terrestrial habitats and 66% of marine habitats.

第六次生物大灭绝事件已经影响了 75% 的陆地栖息地和 66% 的海洋栖息地。

More than 350 million years ago, the ancestors of every land-dwelling, backbone-having animal alive today began to crawl out of the water, and they pretty quickly colonized every terrestrial habitat on Earth.

5 亿多年前，如今存活着的每一个陆生脊椎动物的祖先开始从水里爬出来，它们很快就占领了地球上的每一个陆地栖息地。