Are tiny grazers the new hope for Caribbean reefs?

Thirty years ago a mysterious disease wiped out long-spined black sea urchins across the Caribbean, leading to massive algal overgrowth that smothered already overfished coral reefs. Now, marine biologists at the Smithsonian ...

Record coral kill-off on Great Barrier Reef

A mass bleaching event on the Great Barrier Reef this year killed more corals than ever before, scientists said Tuesday, sounding the alarm over the delicate ecosystem.

Rising CO2 threatens coral and people who use reefs

As atmospheric carbon dioxide (CO2) levels rise, very few coral reef ecosystems will be spared the impacts of ocean acidification or sea surface temperature rise, according to a new analysis. The damage will cause the most ...

Clever fish keep cool

Ocean warming is occurring at such a rapid rate that fish are searching for cooler waters to call home.

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