The most famous wildlife event in the world is the Great Migration, bringing with it, the wildebeests and zebra as the shining stars of the show. Over 1.5 million wildebeests and around 300,000 zebras make the journey to the Serengeti-Mara ecosystem every year searching for grazing land, and this repetitive cycle can be completed within a year. The migration itself spans almost 1800 miles and is triggered by seasonal rains. The strong instincts and sheer numbers of the wildebeests are enough to make them succeed while the zebras lead the way due to how well they can remember regions and their eyesight. Zebras and wildebeests also have a mutualistic relationship where zebras eat the top grass and, piercing through to softer sprouts meant for the dopey wildebeests. Dramatic confrontations from predators and river crossings mark this journey, establishing the animals as an essential part of the wildlife scenery in Serengeti.