Answer:
Rivers
Step-by-step explanation:
During their migration, wildebeests follow rivers. The wildebeest migration is an annual event that involves the movement of millions of wildebeests, as well as zebras and other grazing animals, from the Serengeti National Park in Tanzania to the Masai Mara National Reserve in Kenya and back again. This migration is driven by the need to find food and water, and the animals follow the rains and the growth of new grass. However, the rivers are a crucial factor in the migration, as they provide water for the animals to drink and can also be a barrier that the animals must cross to reach new grazing areas. The crossing of rivers, such as the Mara River, is one of the most dramatic and dangerous parts of the migration, as crocodiles and other predators wait in the water to attack the crossing animals.