Sponges are using toxins, mucus, shading and smothering to kill and then take over coral colonies in areas that have been over-fished, finds a new study.
The harlequin filefish smells like coral instead of dinner to things that would like to eat it.
The government's plans to protect the Great Barrier Reef can't prevent its decline, the country's pre-eminent grouping of natural scientists said Tuesday.
Fish are flocking to the structures beneath oil drilling platforms, and turning them into living spaces. Continue reading →
Contest yields a stunning array of pictures of nature in action.
The coral-like creatures may have built the superstructures to protect themselves from predators or to soak up the nutrients from ocean currents.
As NOAA's '30 Days of the Ocean' draw to a close this weekend, we take a look at some of its wonderful underwater camera work.
Ecologists relocated fertile crayweed from surrounding coastal areas to two barren reefs to provide food and shelter for undersea creatures.
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