Whales commit to one of the largest migrations in the animal world, travelling from one of the end of the Earth to another. They cover vast waters on a bi-annual basis for several different reasons: Food supply, water temperature, breeding, birth and climate change has altered the way whales migrate. The Humpback species of whale, take one of the biggest migrations of all the types of whales. A pod of Humpback whale s is usually made up of approximately 10 whales. For breeding and giving birth, a pod of Humpbackwhales will migrate to warm, tropical waters in the winter nearby to the Equator. The reason for this is because for the remainder of the year, Humpback whales live in either the Arctic or Antarctic where the winters are harsh and vast amounts of the water freezes over. One of the routes a certain group of humpback whales take is from Antarctica to Hervey Bay, the Great Barrier Reef and other waters off Australia and Fiji. The distance between these two locations is approximately 2,500km. which the whales do twice a year. The picture above shows this route and also other migration routes different pods of Humpback whales take: