Few people ever see this extraordinary annual event. Mongolian gazelle, 2 million are thought to live here but no one really knows. For much of the time they're scattered through this vast landscape but once a year they come together to have their young. Nearly all will give birth within the next ten days. Out in the open, communal calving is the safest way to have young. With so many pairs of eyes keeping watch it's almost impossible for predators to sneak up. There are no bushes, no trees, there's only one thing to hide behind - grass. And it's not very effective.


很少人见过这种一年一度的壮丽景观。这是黄羊，估计有200万只黄羊生活在这里，至今没有人知道得很确切。大部分时间，它们都分散在广阔的草原里，但它们每年都会聚集到一起繁育后代。几乎所有母黄羊都会在10天之内生下小羊。在草原上，集体生育是最安全的方式，因为有如此众多的眼睛保持着警惕，食肉动物几乎不可能偷袭。没有灌木丛，没有树，只有一个地方可以隐藏，那就是草丛。不过隐蔽效果非常不好。