Between the open plains of the Serengeti and the Masai Mara, thousands of wildebeest and zebras migrate to greener pastures as the seasons change and the circle of life and death continues.

• 以如此大的动物群数量，一片入目可及的草原只够吃四、五天，因此他们要移动。而有经验的牛羚领袖就带领他们向马拉河集结，准备到对岸的马赛马拉吃“原封未动”的青草，行列可达四十公里。