National Park DVD - America's Greatest Caverns

Name:	DVD, America's Greatest Caverns
Format:	Region: plays worldwide, NTSC
Part #	DV-9
Price:	$19.95
Run Time:	60 min.
More Information:	• Cave formation • The role of water Cave Wildlife • Digital Picture & Sound Quality • Interactive Menus • Chapter Search DVD BONUS FEATURE – • Cave Conservation & Ethics bonus video

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DVD DESCRIPTION: Rangers explain how cave features were formed and the role that water plays in the creation and health of cave ecosystems. Marvel at the unique creatures that have adapted to life in the dark, from eyeless fish to cave crickets. Learn of scientists and spelunkers and their contributions to this fascinating underground world.
Released 4/01DVD

DVD BONUS FEATURE:
Cave Conservation & Ethics video – This educational video is at once fascinating and informative as it presents the most important aspects of what you can do as a cave visitor to help preserve and protect our underground national treasures.

DVD CHAPTERS:
1 Introduction
2 Types of Caverns
3 How Caverns Form
4 Formations Within
5 Cavern History
6 Exploring Below
7 Ecology
8 Underground Worlds
9 Wildlife
10 Conclusion