Animales Migratorios: Por Tierra

Why and how do animals migrate? Find out in this Spanish series for young readers, which covers the journeys—sometimes lifelong, sometimes accomplished in a 24-hour period—of an amazing range of animals. From the Arctic tern that makes a yearly round trip from the Arctic to the Antarctic to the African elephant circling the drying plains of Africa, moving from water hole to water hole, to the tiny ruby-throated hummingbird catching winds to carry it across the Gulf of Mexico, animal migrati...