Recognized as a UNESCO World Heritage Site, Africa's famous Serengeti National Park is a completely unique natural ecosystem, virtually untouched by human influence to date. It is a place of colossal annual animal migrations, where hundreds of thousands of zebras, antelopes and other herbivores move in an unmarked circle every year. Huge herds are accompanied by their natural enemies, predators, making this long journey a constant struggle for existence of epic proportions.