This coral looks like a beating heart but it's actually in serious trouble
 

This coral looks like a beating heart but it's actually in serious trouble
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Bleaching is destroying the world's coral reefs and it's caused by warmer waters. This video shows what actually happens to a coral as it deals with the stress of heat. Read more...

More about Mashable Video, Global Warming, Ocean, Australia, and Coral Reefhttp://feeds.feedburner.com/~r/Mashable/~4/oVjp3lhgF7g