The East African Rift Valley holds three of the world's largest: 东非大裂谷内有着3个世界上最大的淡水湖
This is one of the largest concentrations of Nile crocodiles in Africa, 这里是非洲一处最大的尼罗鳄聚集地
This is the world's largest fresh water fish migration. 这是世界上规模最大的淡水鱼洄游
Giant salamanders, world's largest amphibian, 大鲵——世界上最大的两栖动物
They live in the largest assemblies formed by any monkeys. 它们生活的社群是所有猴类中最大的