Voir sur FrenchStream. East Africa's Mara River is both a giver of life and and bringer of death. It is a crucial crossing point for the largest migration of mammals on the planet, including millions of zebras and wildebeests. It is also the stage for an ancient and bloody confrontation between these herds and crocodiles. With the gathering of predators and prey on its banks, the water is sure to run red with blood.