They need the rains to provide food for their family. 成立一个家庭需要雨水来提供食物

82. But sadly he may only ever dance alone.
    然而遗憾的是 这只雄鸟也许永远只能独舞
83. For the last three years, the rains have failed.
    在过去的三年里 这里没有下过一场雨
84. Without them, the females won't mate.
    而没有雨 雌鸟便不会寻找配偶
85. They need the rains to provide food for their family.
    成立一个家庭需要雨水来提供食物
86. Changes in the climate are affecting these birds,
    气候的变化正在影响这些鸟类
87. just as they are affecting us.
    同时也在影响我们人类
88. A quarter of the world's people live in arid lands.
    世界上四分之一的人口居住在干旱地区

来自《行星地球 第三季 第三集 Planet Earth S03E03 沙漠与草原》第 85 行