migration

Discusses the physical characteristics and habits of those rodents of the far north whose periodic massive marches to the sea continue to baffle scientists looking for a reason.

Introduces the migration and mating habits of the robin emphasizing the instincts that enable him to return each year to the same northern nest.

Discusses the reasons for animal migration and describes the migratory habits of a variety of birds, insects, and other animals.

Traces the migratory journeys of more than 100 bird species from both hemispheres, describing their physical characteristics, habitats, and behaviors that influence their migration patterns.

Follow the migration of gray whales as they swim south from the Arctic Ocean to the Pacific.

Explores the mysteries of migration and investigates the lives of various migratory animals, including fish and crustaceans, birds, reptiles and amphibians, mammals, and insects.

Describes the different ways animals travel and explains why certain species travel at specific times of the year.

Describes the reasons for the regular migrations of such animals as seals, caribou, lemmings, birds, and insects.

Jason and Tommy follow a monarch butterfly on its migratory flight from the northern United States to Mexico.

Describes the migrations of ten animals, including the desert locust, the emperor penguin, and the wildebeest.