Ready to go on a journey? It's a wild trip through rushing rivers, across frozen ice floes, and through stormy skies. It will take you from Mexico across the Great Plains, through Pacific waters, and as far north as the Arctic Circle. Your travel companions are some of America's most interesting animals. Why Migrate? Migration is the seasonal movement of wildlife from one place to another for food or breeding. Animals migrate for survival, not fun. Their lives revolve around the seasons and the environment. In fall, animals migrate south, where food is still abundant. In spring, they migrate north, where food is once again becoming available so they can reproduce. Animals don't use calendars or information in books to tell them when to migrate. Instead, the amount of daylight and temperatures triggers their migration instinct. Excerpted from Migration Nation: Animals on the Go from Coast to Coast by Joanne O'Sullivan All rights reserved by the original copyright owners. Excerpts are provided for display purposes only and may not be reproduced, reprinted or distributed without the written permission of the publisher.
