Each year roughly 1.5 million wildebeest, along with hundreds of thousands of zebra and gazelle, cross between Kenya's Maasai Mara and Tanzania's Serengeti in a continuous circuit following seasonal rains. It is widely regarded as the largest overland migration of land mammals on Earth.
Record no. MRB-2026-005786
Largest Overland Mammal Migration
Reference Record – Not Certified
This record is compiled from publicly available sources for reference. It has not been examined or certified by The Book of World Records.