Beneath the soft bodies of scleractinian, or stony corals, polyps secrete a calcium carbonate skeleton, and it is this skeleton that becomes the foundation of coral reef ecosystems. Coral colonies ...

The Great Barrier Reef in Australia is huge, stretching 2,900 km (1,800 miles). It’s filled with a wide variety of marine ...

Soft corals top hard ones, algae and sponges paint the rocks, and every crevice is a creature's home. The biology, like the reef, transforms from the north—where the reef began—to the south.

Brain coral is a hard coral, also known as a stony coral or reef builder. They cluster into colonies and ultimately create the foundation for a reef to form, giving soft corals and many other marine ...

A recent survey of some areas of Australia’s Great Barrier Reef suggested that more than a third of the corals in the region might have died, leaving a marine graveyard behind. “The soft ...

Soft and black corals are marine invertebrates, which are rare and endangered animals that are vital parts of coral reef ...

The Coral Triangle is a marine region that spans those parts of Indonesia, Malaysia, Papua New Guinea, the Philippines, the Solomon Islands and Timor-Leste with at least 500 species of reef-building ...