Robert HardingThe great wildebeest migration is the largest and most spectacular movement of animals in the world. Over two million animals migrate from the Serengeti National Park in Tanzania to the greener pastures of the Maasai Mara National Reserve in Kenya between July and October. One of the most frantic parts of their journey happens in September, when they cross the Mara river where crocodiles lay waiting for them.
Blue Wildebeest herd at the Mara River in the morning (Thorsten Negro/Robert Harding)
Over two million animals migrate from the Serengeti National Park (Thorsten Negro/Robert Harding)
The crossing is frantic as the animals try to get across the river alive (Frank Parker/Robert Harding)
Wildebeest watch crocodiles at the riverside (Frank Parker/Robert Harding)
Crocodile goes in for the kill (Frank Parker/Robert Harding)
Dust rises as wildebeest approach the river (Frank Parker/Robert Harding)
Gnu jumps into the Mara river (Uwe Skrzypczak/Robert Harding)
Wildebeest crossing the Mara River (Uwe Skrzypczak/Robert Harding)
Once the wildebeest arrive, the migration cycle starts again (Ingo Schulz/Okapia/Robert Harding)
See more photos of wildebeests here