High-Bandwidth Version
Search Evolution  
Click to return to the Evolution Home Page
darwin change extinction survival sex humans religion
Coral Reef Connections
  Reef Relationships | Predators and Prey | Competitors | Partners | Conclusion

Reef Relationships

Partners, Competitors, and Enemies on the Great Barrier Reef

Stretching over 1,200 miles, Australia's Great Barrier Reef is the largest structure on Earth built by living organisms. Even for its size, it houses an incredible biodiversity -- literally thousands of species, many yet to be identified.

How has such variety evolved? Simply put, individual organisms must change and then survive in their new forms. They can be pressured to change -- sometimes into entirely new species -- both by the physical environment and by other organisms with which they interact.

Here, you will meet some of the Great Barrier Reef species that have evolved as partners, competitors, and enemies in the never-ending challenge to survive and reproduce.

  -> Eat or Be Eaten: Predators and Prey, Parasites and Hosts
  Reef Relationships | Predators and Prey | Competitors | Partners | Conclusion
  related web activities  
An Origin of Species
Witness for yourself how a new species can evolve.
Microbe Clock
Learn how deadly microbes outpace medical breakthroughs.
Sex and the Single Guppy
Learn how exhibitionism has an evolutionary payoff.
  related topics  
  Adaptation and Natural Selection  
  Evolution of Diversity  
  Why Evolution Matters  
    Source Credits    
Videos Web Activities Site Guide About the Project FAQ Glossary Site Map Feedback Help Shop