And animals must cope with the changes, 动物们必须应对这些改变

297. pigeons are now having to learn to avoid a fish
     鸽子现在却要学会避开水里的鱼
298. Our cities are always changing.
     我们的城市在不断变化
299. Sometimes very swiftly.
     有时极为迅速
300. And animals must cope with the changes,
     动物们必须应对这些改变
301. or disappear.
     否则就会消失
302. One of the greatest changes in recent times
     近年来 最大的变化之一
303. has come from a single invention made less than 140 years ago.
     是由一项历史还不到一百四十年的发明引起的

来自《行星地球 第二季 第六集 Planet Earth S02E06 城市》第 300 行