Wildebeest migration across the Mara River from the Serengeti National Park-Tanzania to Maasai Mara National Reserve-Kenya, which is the eighth wonder of the world.According to Assistant Director Kenya Wildlife Service (KWS) in charge of Narok Ecosystem Ibrahim Osman, the mysterious phenomenon occurs only at the Maasai Mara-Serengeti Ecosystem between the months of July and October.Source: Kenya News Agency