NOVA Online (click here for NOVA home)
Garden of Eden

Build an Atoll Go to Build an Atoll

Flash required

Build an Island
by Rick Groleau

Most people associate the name Charles Darwin with the theory of evolution by natural selection. But in 1842, 17 years before he published his groundbreaking Origin of Species, Darwin gained recognition for another theory, this one in the field of geology.

The theory explained the formation of atolls, low-lying coral islands found mainly in the South Pacific. (Aldabra, the atoll featured in the NOVA program "Garden of Eden," lies in the Indian Ocean.) Over a century and a half later, Darwin's theory still remains the basis for the study of atoll evolution. What is this theory of atoll evolution? Take a look at the following presentation to find out.

    Build an Atoll
        Requires the free Flash plug-in

    Build an Atoll
        (non-Flash version)

Rick Groleau is managing editor for NOVA Online.

Seychelles Through Time | Saving the Magpie Robin
Why Do Islands Breed Giants? | Build an Island
Resources | Transcript | Site Map | Garden of Eden Home

Editor's Picks | Previous Sites | Join Us/E-mail | TV/Web Schedule
About NOVA | Teachers | Site Map | Shop | Jobs | Search | To print
PBS Online | NOVA Online | WGBH

© | Updated November 2000
/wgbh/nova/eden/textindex.html /wgbh/nova/eden/ /wgbh/nova/eden/