Planet Earth

This global tour examines animal behaviors and emphasizes the effects of climate change on their natural habitats.

This episode explores the world's major mountain ranges, focusing on their geographical importance and the wide variety of ecosystems they sustain.

Fresh water constitutes approximately 3% of Earth's total water supply and plays a crucial role in the planet's weather systems and erosion processes. It provides essential habitats for non-marine wildlife, supporting activities such as drinking, breeding, hunting, and living. Freshwater ecosystems, including rivers, lakes, and swamps, are home to a wide variety of species that have adapted to life in aquatic environments.

This episode explores the unique ecosystems of caves, highlighting their unusual wildlife and intriguing geological formations. It examines the underground structures that form and the adaptations animals have developed to survive in these dark, isolated habitats.

Deserts, which cover approximately thirty percent of Earth's land surface, are highly diverse ecosystems marked by extreme environmental conditions. This episode explores the distinctive challenges of desert environments and the extraordinary adaptations that enable animals to thrive in these demanding landscapes.

This episode explores the extreme environments of the Arctic and Antarctic, focusing on their distinctive landscapes, severe climates, and the wildlife that has evolved to endure these frigid regions.

This episode examines treeless ecosystems such as the savanna, steppe, tundra, and prairie, emphasizing the essential role and resilience of grasses in supporting life. It highlights the rich biodiversity found in these open environments, featuring striking aerial footage of 1.5 billion red-billed queleas in Africa, the largest bird flock ever recorded.

Jungles, which account for approximately three percent of Earth's surface, are home to half of the world's known species, demonstrating a remarkable diversity of plant and animal life.

This episode examines the varied ecosystems of Earth's shallow seas, such as colorful coral reefs and thick kelp forests, emphasizing the organisms and obstacles present in these underwater habitats.

This episode examines trees as Earth's largest and longest-inhabiting organisms, focusing on seasonal forests as the planet's most extensive land habitats. It looks at the vast taiga in the Arctic north, home to a third of the world's trees, and highlights the giant sequoias of California. The episode also explains how trees sustain a complex cycle of life through processes like photosynthesis and shade provision, supporting a wide range of plant and animal species.

This episode explores the enigmatic and extreme conditions of the deep ocean, highlighting a range of species that survive in the darkness at depths of up to 2,000 meters.