200万年前,非州恩戈罗火山大爆发,把富含微量元素的火山灰抛向东非,形成了盖伦盖蒂和马塞马拉两块世界级的动物天堂。以角马为首的大批动物春季在垣桑尼亚的盖伦盖蒂吃完草后,必须西迁过河到肯尼亚的马塞马拉寻找新草原,否则将会在旱季饥困而亡。于是每年七到九月都有100万头角马、15万头斑马 Two million years ago, the non-state Ngororo volcano erupts and sends trace-rich ash to East Africa, forming two world-class animal paradises, the Gaillantie and Masaimara. A large number of animals headed by wildebeests After eating grass in Gaillantie, Gansu, in the spring, they have to move westward to search for new grasslands in Kenya’s Masimara, otherwise they will die during the dry season. So every year from July to September, there are 1 million wildebeests and 150,000 zebras