Great white sharks in the Pacific ocean. Wildebeest in Africa. Arctic terns in the Atlantic. At first, these animals seem completely different. One swims, one walks, and the other flies. But they all have one thing in common. They all migrate.
Some migrating groups move to a place with a better temperature. Some go to find food or water. The groups travel as one, trying to survive. During the trip, they face many different challenges.
One challenge is distance. Some migrating animals take very long trips. They go far away from their home areas. For example, one great white shark swam from Australia to South Africa and back. In nine months, it swam about 20,000 kilometers.
Another challenge is finding enough food and water during the journey. For example, Mali elephant needs over 200 liters of water each day. To get this, they need to go from one waterhole another.
In addition, migrating animals have to avoid other animals that want to eat them. For example, the zebra has to stay away from lions. Traveling as a group helps keep for danger. When one zebra is in the group can safe. All the trouble, the other members make a circle around it.
By working as a group, migrating animals can survive some of the world's most extraordinary journeys.