Threatened coral get fishy rescue

When toxic seaweed gets too close to this coral, gobies fight and bite back

By Stephen Ornes, 11:00 AM December 6, 2012

Organisms called coral have hard skeletons that anchor them to the skeletal remains of other, dead coral. These sea creatures, which form stony communities called reefs, are fighting to survive. They’re under attack from overfishing, pollution and climate change. And they have to compete for space and sunlight with seaweed — some of which is poisonous to coral. But new research shows that when threatened by that seaweed, some corals release a chemical that may bring an army of fish to the ...

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