From Nat Geo:
Photograph by Nicole Cambré
A migrating wildebeest leaps into the low waters of the Mara River in Tanzania. Wildebeests begin their annual migration at the edge of the Serengeti Plains. On their enormous loop following seasonal rains, the more than 1.5 million animals encounter deadly crossings like this one at the Mara, infamous home of the giant Nile crocodile.