There the animals gather in herds to graze low-lying meadows with access to permanent water. The Sudd wetlands of southern Sudan, nourished by the White Nile, are home to an astounding number of white-eared kob—more than 800,000 animals. But wet season means a move en masse to the south, as far as 930 miles as the kob chase nutritious shortgrasses and seek lands less susceptible to flooding.
