Across mountains, deserts, oceans and frozen landscapes, animals undertake epic migrations in search of food, safety and the chance to breed. For some, every mile is a matter of life and death... #BBCEarth #Animals #Migration #Wildlife #Nature 00:00 - The 13,000 km Adélie Penguin trek 02:55 - 100 million Monarch Butterflies on the move 05:52 - 50 million Red Crabs march to the sea 09:08 - Cranes brave the Himalayas & Eagle ambush 15:15 - 10 Million Fruit Bats converge on Africa 19:22 - The mystery of the Kalahari Zebra migration 26:26 - The spawning Trout river run 30:26 - Elephant herds on the move: orphan calf finds hope 34:45 - The deadly Arctic Caribou spring migration Subscribe: bit.ly/BBCEarthSub Sign up to our newsletter for the latest news, updates and exclusives from BBC Earth bbcearth.com/newsletter Watch more: Best of BBC Earth 🌍 bit.ly/BestOfBBCEarth Best Animal Fights 🥊 bit.ly/BestAnimalFights Videos over 10 minutes ⏰ bit....