Bullfrog Films
10 minutes
Study Guide
Grades 7-12, College, Adult

Directed by Sharon Howard and Mike Rosen
Produced by Howard Rosen Productions

DVD Purchase $79, Rent $45

US Release Date: 2000
Copyright Date: 1999
DVD ISBN: 1-59458-427-3
VHS ISBN: 1-56029-844-8

Endangered Species
Environmental Ethics
Life Science
Marine Biology
Oceans and Coasts
Outdoor Education
Social Psychology

Awards and Festivals
5 Emmy Awards
Gold Hugo, Chicago International Television Competition
Best of Category , Best Educational Value, Best Scientific Content and Best Conservation Message, International Wildlife Film Festival, Missoula
UNESCO Silver Medal, The New York Festivals
Best of Category, EarthVision Environmental Film & Video Festival
Best Graphic Design, International Monitor Awards
Bronze Anvil Award, Public Relations Society of America
Equinox Environmental Film Festival
Environmental Film Festival in the Nation's Capital
Olympia Environmental Film Festival
Natural Connections Series
Keystone Species

The principle of keystone species proves the interconnectedness of the living world.

"Riveting and startling, but, more important, congenial, considerate and convincing." Seattle Post-Intelligencer

Zoologist Bob Paine has conducted experiments on a small island off the Washington coast for over 30 years in one of the longest ongoing studies of a single area by the same scientist.

His experiment on the connection between starfish and mussels has resulted in one of the most important principles of modern ecology, known as "keystone species". Paine showed that certain species are critically important to the balance of particular ecosystems. The loss of a keystone species can have a devastating impact on that ecosystem's biodiversity.

Humans impact the biodiversity of the world more than any other creature. We are the ultimate keystone species. Thus we have a larger responsibility towards the world around us.

Other programs in the series are:

Introduction to Biodiversity - The concept of biological diversity and its importance to humans.

The Significance of Salmon - Salmon and people both need clean water to survive. Can we make the connection?

Forests, Biodiversity and You - Can forests retain their productivity and biodiversity? Consuming less ourselves is key.

Biodiversity vs. Extinction - Mass extinction of species can be stopped if we understand the importance of biodiversity.

Web Page: http://www.bullfrogfilms.com/catalog/nat3.html

"Astonishingly beautiful documentary...With gorgeous photography, straightforward writing and enthusiastic participation by scientists who don't come off as pedants...a wake-up call that is riveting and startling, but, more important, congenial, considerate and convincing."

Seattle Post-Intelligencer

"A beautifully produced and effective piece."
Edward O. Wilson, Honorary Curator of Entomology, Museum of Comparative Zoology, Harvard University, and author of Biophilia and The Diversity of Life

"This video...is an invaluable teaching tool. There are dozens of films on the market that address the environmental and biodiversity problems we are currently facing. Natural Connections may have an edge because it will appeal to all age groups. Highly recommended for public, school and college libraries."
Barb Butler, Oregon Institute of Marine Biology, MC Journal

"Superb photography, eloquent narration, and stirring interviews with biologists combine to make this Emmy Award winner perhaps the best video I have ever seen to make the case for the preservation of biodiversity. This dramatic video should be required viewing for all students teachers, parents, politicians, business leaders, consumers...Most highly recommended for viewers from about grade 6 or 7 through adults. Schools, nature centers, camps, and even individuals will value this video."
Dan R. Kunkle, Wildlife Activist Magazine

"A lovely piece