Coral Reefs and Corals
Reefs are found in the fossil record and are thought to be about two billion years old. These reefs were built by calcareous algae and not corals. The first true corals did not ...
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Coral Reef
Coral reefs represent some of the oldest and most complex communities of plants and animals on Earth. About 200–400 million years old, they cover about 231,660 mi2 (600,000 km2) wo...
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Coral Reefs
350 million years ago, the oceans were the beating heart of existence. Plants had just begun to develop upon the earth's terrestrial regions, but the aquatic bodies of our planet had long...
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Coral Reefs and Corals
Coral Reef
