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Wednesday, 17 August 2016 08:19

Eerie Video Shows How Coral Bleaches

Time-lapse video captures the coral's convulsions while it expels the algae that give it color.

Coral itself is not colorful. It gets it's hues from a special types of algae, called zooxanthellae, that lives in its tissues, feeding on the coral’s metabolic waste. In return, the algae produces sugars and amino acids that the coral polyp eats as food.

When coral gets stressed from events like a rise in water temperatures, it ejects its colorful algal companions, turning white in a process called bleaching. But how this happens is not well understood. So to figure it out, a team of researchers from Queensland University of Technology caught this process in action using time-lapse video.

Published in News

Ethiopia is in the middle of the worst drought in 50 years. It’s the sort of shock to the system we are likely to see more of with climate change. But Ethiopia is also home to a successful experiment to make the land more resilient to drought. If we are going to adapt to our changing world, it’s experiments like these that will show us the way.

Published in News

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