The Australian government is trying to keep the Great Barrier Reef off the United Nations' "endangered" listing, but scientists say their plan isn't good enough.
The sperm can be used to reseed the reef in the future.
A mysteriously healthy patch of coral reefs in the Red Sea and Persian Gulf might provide scientists with ways to protect the rest of the reefs
But it's not going to be easy for many species
To track the effects of warming seas on coral reefs, a new survey project is launching an extensive database of panoramic underwater imagery.
It is now stable and vegetated. Great job, island!
The retired U.S.S. Oriskany is now host to fish and divers. Click here to see the 32,000-ton hulk sink
Survey finds new marine species
A new laundry additive turns ordinary garments into wearable air-scrubbers that pull nitrogen oxides from the atmosphere.
Where no human has gone before
Bye, bye, plastic.
Plus, new Veil Nebula images from Hubble
David Keith believes strong-arm strategies could soon be our last resort for reversing record levels of carbon in the atmosphere
Cindy Lee Van Dover was the first woman to pilot the Alvin submarine, and that was only the beginning.
The algae systems can capture most of the phosphorus and nitrogen in runoff
Fabien Cousteau and his team are setting out to break the record for living in an underwater habitat.
Western architects have grand plans for helping China solve its expanding environmental crisis. But the world's dirtiest country already has the power to clean up all on its own
A carbon tax would make companies think harder about using fossil fuels, which spur rising acidity in the seas