|The most amazing
features of tropical oceans are its beautiful and fragile coral reefs.
What is a coral reef?
A reef is a coral community consisting of several thousand
organisms living together. Although it looks like a dormant underwater
bush, the reef is very much alive. Reefs grow very slowly over time. In
fact, an inch of coral reef takes nearly 100 years to grow!
|World wide, coral reefs cover
600,000 square miles and are home to over 500,000 species!
There are many threats to coral
reefs. These include unsustainable fishing practices (using cyanide and
dynamite), and pollution.