At a riverbank in Africa"s Serengeti, thousands of migrating wildebeest try desperately to cross as terrifying crocs feast on the galloping herds--which must attempt the river for a chance at survival. In the Falkland Islands, the albatross--king of migrations--journeys thousands of miles to nest despite the deadly cara cara, a predatory raptor. For countless animals species, migration is a dramatic, dangerous, and crucial undertaking...one that is portrayed in vivid color and unflinching candor in this magnificent book, companion to the 7-hour HD epic television event from National Geographic which airs beginning on Sunday, November 7th, 2010.The book follows the sequence of the film, with each section highlighting a factor that makes these epic journeys essential. "The Need for Speed" documents migration as a race against time, in which freezing temperatures or scorching heat usher in a crisis. Incredible photographs document activity along the Mississippi Flyway, which teems with...