The annual blue wildebeest migration in East Africa is the world’s largest land migration, and one of the most famous of all natural spectacles.
During their annual circular migration, huge herds of over a million blue wildebeest travel a distance of around 1,000 miles (1,600 km) in search of fresh grazing and water.
Challenges faced by the blue wildebeest during the journey include crossing crocodile-infested rivers and the continuous threat of predation by animals such as lions, hyenas and cheetahs.