Caption :Wildebeests (connochaetes taurinus) prepare to cross the Mara river during a migration in Masaai Mara game reserve, 165 miles south-west of Nairobi.

• 描述：在马赛马拉野生动物保护区，迁徙途中的大群角马正准备渡过马拉河。马赛马拉保护区距内罗毕西南165英里。