Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS
Intimate Strangers Unseen Life on Earth
1. Tree of Life
2. Biosphere
3. Friendly Enemies
4. Age of Biology
5. Game of Life
(go to PBS Online)

Microbes are everywhere, but we canít see them. They make us sick, but we canít live without them. Microbes are an integral ingredient in this planetís ecosystem, but we understand so little about them.

Most of us think of microbes as disease-causing germs if we think about them at all. Yet those who study this mysterious, silent, invisible world know that the creatures that populate it do far more good than harm.

Microbes were the first life forms on Earth. They form the basis of the food web and are responsible for the production of most of the Earthís oxygen. Ultimately, all life relies on these tiny, invisible creatures.

 

Tree of Life | Biosphere | Friendly Enemies | Age of Biology | Game of Life
About the Program | Site Map


Funding provided by:

National
Science
Foundation

Department
of
Energy

American
Society
for
Microbiology

 

Copyright © 1999 Oregon Public Broadcasting and PBS Online

About the Program Classroom Resources