pigeons are now having to learn to avoid a fish 鸽子现在却要学会避开水里的鱼

294. This is a radical new hunting strategy
     对底栖鱼类来说
295. for what is normally a bottom-dwelling fish.
     这是种全新的捕猎策略
296. After a thousand years of living in this city,
     在城市居住了上千年之后
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

来自《行星地球 第二季 第六集 Planet Earth S02E06 城市》第 297 行