The young twins will now begin the nomadic life 这两只小羊即将与其他草原动物一样
they share with most animals on the world's open plains. 开始辽阔草原上不断迁徙的生活
The rain that a grassland needs to survive for a year 草原生长所需的年降雨量
that they're built for a life on the move. 预示着它们一生都将奔波在路上
their mother has left them hidden in the grass. 母亲会将它们藏在草丛中
For these calves, the clock is already ticking. 对这两只小羊来说 时间紧迫
A relic from the Ice Age, a baby Saiga antelope, 一种冰川时代存活至今的生物 高鼻羚羊幼崽
The largest grassland on Earth, the vast Eurasian Steppe, 辽阔的欧亚草原区是地球上最大的草原地带
stretches one third of the way around our planet. 覆盖距离达到地球周长的三分之一