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 5 food or water. The groups travel as one, trying to survive. During the trip, they face many different challenges ate- One challenge is distance. Some migrating animals take very long trips. They go far our away from their home areas. For example, one great white shark swam from Australia to South Africa back. In nine months, swam about 10 Another challenge is finding enough food and water during the journey. For example, each Mali elephant needs over 200 liters of water each day. To get this, they need to go from one waterhole to another.