At first, the animals looked like nudibranchs, sea slugs “well ... divers were collecting soft coral when they noticed one of ...

the framework of the coral reef is filled with sediment and cemented with calcite and aragonite. If sea level changes, the reefs become exposed to corrosive rainwater that dissolves the unstable ...

hiding in coral branches and the spines of sea urchins. Coral shrimpfish are small, slender fish with compressed bodies. They’re yellow-brown in color with a single dark stripe running from their ...

In the Caribbean Sea and eastern Atlantic Ocean, finger corals inhabit most shallow reef colonies. They will also attach themselves to mangroves. As its name suggests, finger coral looks very similar ...

The ornately colored sea anemone (uh-NEM-uh-nee) is named after the equally flashy terrestrial anemone flower. A close relative of coral and jellyfish, anemones are stinging polyps that spend most ...

Beneath the waters off Egypt’s Red Sea coast, a kaleidoscopic ecosystem teems with life. It could become the world’s “last coral refuge” as global heating eradicates reefs elsewhere ...

Record-breaking ocean heat has taken a devastating toll on one of the world’s greatest natural wonders, with coral bleaching ...

It tells of a time 125,000 years ago, when a modest increase in Earth’s temperatures caused ice sheets to melt and global sea levels to surge. The height of the coral — which can grow only ...