Tony Sinclair and his studies on wildebeest were featured in The Serengeti Rules, but the impact of his research extends far beyond that short story. With his fellow researchers, Tony spent five decades piecing together the mystery of the role wildebeest play in shaping the Serengeti ecosystem. Divided into three chapters, this film is designed to align tightly with high school biology curriculum. From core concepts of regulation and carrying capacity, to the fundamental exploration of keystone species, this short film uses the Serengeti case study as a perfect launching point into comprehensive lessons on ecology and biodiversity.