Australia's Great Barrier Reef is an enormous and spectacular natural wonder, but it is also one of the most devastating examples of ecosystems that are increasingly threatened by a warming world. Explore its diverse communities of marine wildlife, and discover the challenges facing corals — which are especially sensitive to temperature change — and the animals that depend on them.
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Coral Reefs Have 'Halos,' and They Can Be Seen from the HeavensWhat's the story behind reefs' mysterious "halos" of empty sand?
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What Are Coral Reefs? -
Climate Change Turned 99.8% of These Sea Turtle Babies into GirlsA new study found that sea turtles born in areas most heated by climate change are 99.8 percent female.
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Can You Put a Price on the Great Barrier Reef? Economists Just DidThe Great Barrier Reef brings real dollars to Australia.
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Great Barrier Reef Again Hit by Severe Coral BleachingTwo-thirds of the length of the Great Barrier Reef is suffering from bleaching, a condition likely to cause mass coral die-offs.
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Global Warming Is Killing the Great Barrier ReefThe Great Barrier Reef has suffered "off the chart" damage.
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Huge Undersea Landslide Slammed Great Barrier Reef 300,000 Years AgoMore than 300,000 years ago, a behemoth undersea landslide sent huge amounts of debris sliding down the Great Barrier Reef, generating a 90-foot-high (27 meters) tsunami.
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Surprise! Another Massive Reef Is Hiding Behind the Great Barrier ReefThe 2,300-square-mile reef was hiding in plain sight.
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Great Barrier Reef Coral Bleaching is 'Worst in its History'Australia's Great Barrier Reef corals are in trouble, with the northern part of the reef experiencing "the worst mass bleaching event in its history."
