Scientific diver Adrienne Correa has helped lead the response to a mysterious disease killing coral in the Flower Garden Banks National Marine Sanctuary off the Louisiana coast.
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An international team of marine biologists has discovered the remnants of ancient RNA viruses embedded in the DNA of symbiotic organisms living inside reef-building corals.
The symbiotic organisms that live in corals and provide them with their dramatic colors contain fragments of ancient RNA viruses that are as much as 160 million years old.