Final answer:
The largest savanna in the world is the Serengeti in northern Tanzania, known for its diverse ecosystem and annual wildlife migrations.
Step-by-step explanation:
The largest savanna in the world is the Serengeti located in northern Tanzania. This savanna is known for its large diverse ecosystem and is particularly famous for the mass migrations that occur annually. Every year, nearly 1.75 million wildebeests commence their journey out of the Ngorongoro Conservation Area at the southern extreme of the Serengeti, following rainfall in pursuit of food. This migration includes large numbers of antelope and other grazing animals moving from the northern hills to the southern plains.
Aside from hosting an extraordinary diversity of mammals and other fauna, the Serengeti is near the Ngorongoro Conservation Area and the Ngorongoro Crater, a UNESCO World Heritage Site. Known as a substantial migration corridor for wildlife, the region is subject to a unique climate due to the rain shadow created by the Ngorongoro Highlands. Despite its reputation for dry conditions, the greater savanna biome can receive up to forty-eight inches of rain annually in the wettest regions near the West African rainforests, supporting a wide range of wildlife and human settlement.