These clips from the NATURE episode "Violent Hawaii" illustrate how erosion has shaped Hawaii's landscape, and show measures being taken there to limit theprocesses of erosion.

This video-enhanced lesson discusses the processes of weathering and erosion and how they work together to shape the earth's landscape. (Grades 9-12)

Segments from the NATURE episode "The Good, The Bad and the Grizzly" examine how human interaction with grizzlies has alternately endangered and restored the population, and how humans coexist with grizzlies today.

These clips from the NATURE episode "Can Animals Predict Disaster?" examine the tsunami of December 26, 2004, and theorize on how animals' greater sensitivity to seismic waves may have given them a lifesaving warning about the disaster.

In this video-enhanced lesson, students will learn how human beings have interacted with and impacted the lives of grizzly bears in Yellowstone Park. (Grades 9-12)

The segments from the NATURE episode "Extraordinary Birds" show examples of the adaptations of different birds to their varying environments.

Video segments from the NATURE film "Earth Navigators" feature cycles of animal migration from one part of the earth to another, including butterflies and wildebeest.

Video from NATURE provides students with dramatic examples of the atmospheric and geologic conditions of one of the most extreme desert environments on earth.

This video-enhanced lesson plan explores how the interactions of air, moisture, wind, and topography in Death Valley, CA contribute to an environment of extremes. (Grades 9-12)

Excerpts from NATURE examine interrelationships between sharks and other species in the marine ecology. Human impact in the ecosystem includes the shark fin industry.