Predators also have a hard time raising their young on open grassland. Without trees eagles have to nest directly on the ground. All inhabitants of the Great Plains are exposed to the elements. Fire sparks panic in the herd. Gazelles are born to run, and even young calves easily outpace the flames if they can avoid being trampled. With nothing to stand in its way the blaze consumes anything that can't flee. Huge quantities of grass, valuable food have been lost and with it the old and the weak. The gazelles move on to new pastures and leave the desolation behind them. From the ashes rises the phoenix - grass, the incredible survivor. 食肉动物在开阔的草原地区养育后代也很困难,因为没有树,雕只能在地上筑巢。大草原上的所有居民都必须面对大自然的风霜雨雪。火在动物群中引起了恐慌,小黄羊一出生就会跑,如果不被同伴踩坏,它们会很轻松地逃离草原大火。火一无阻挡地蔓延,把跑不掉的一切全部烧光,大量的青草,动物们宝贵的食品化成了灰烬。黄羊会离开烧毁的草原,转移到新的草场。不过如凤凰涅槃一般,青草会令人难以置信地从灰烬中生长出来了。