What is a coral reef?
The Great Barrier Reef from space.
Corals and their Kind
Close-up of acropora sp polyps.
Structure of a typical coral polyp.
Structure of Zooxanthellae.
A Symbiotic Relationship
Close-up of Zooxanthellae.
Massive reef structure of the Great barrier reef, Australia.
From Polyp to Reef
Coral core samples reveal horizontal growth lines.
Darwin’s three stages of atoll formation.
The Structure of Coral Reefs
Three different types of Reef
Graphic of typical coral reef zones.