From the epic migration of the huge humpback whale to the unbelievable determination of the tiny hummingbird, come on a trip around the world and learn the story of each animal's migration and the reasons why they travel so very far. This vividly illustrated introduction to animal migration across land, sea, and air looks at the most astonishing journeys undertaken by animals around the world. From wildebeest to butterflies; polar bears to Leatherback turtles, each animal tells its own 'micro story' about its incredible journey across a variety of terrain at different times of the year.