"A National Georgraphic Channel global television event"--Cover.

Every year like clockwork, animals both big and small are driven by a natural instinct to move, in order to survive. On both land and sea, they fight the odds a

The monarch butterfly, one of the most seemingly delicate of all of nature’s animals, proves to be one of the toughest in this reader. Making the yearly trip

An illustrated companion to the seven-hour National Geographic Channel special miniseries of the same title. It includes 250 breathtaking photos and describes a

This spectacular guide explores the mysteries of animal migration over land, in the oceans, and through the air. Lavishly illustrated with two hundred photograp