Animals of all shapes and sizes make epic journeys across our planet, through harsh weather, avoiding hungry predators, in their efforts to survive. Travel around the globe with some of the world's most incredible animals and discover their unique migration stories.Follow the emperor penguin through snow, ice and bitter temperatures; watch as the great white shark swims 10,000 km in search of seals; track huge herds of elephants, on their yearly hunt for water and be amazed a