Discusses the tundra biome, highlighting its extreme climate characterized by low temperatures and a short growing season. It describes the unique adaptations of tundra wildlife, such as the muskox and arctic fox, which thrive in harsh conditions. The seasonal changes in the tundra are explored, detailing the brief summer when plant life flourishes and animals migrate to take advantage of the abundant food supply. As summer ends, the tundra prepares for the long, cold winter, leading to a decline in wildlife activity and the migration of many species.