Denise’s pygmy seahorse, barely larger than a fingernail, blends perfectly with its coral home. Found in the western Pacific, ...

Although the humble sea cucumber may not look like much, it could soon be recruited to help save the world's coral reefs. The bottom-dwelling animals have been found to play a vital role in protecting ...

Scientists found a sea animal with odd-shaped growths on a coral reef in Thailand and discovered a new species, a study said. Photo shows a representative area of Koh Tao. Photo from Oliver Frsh via ...

Researchers discovered that sea cucumbers -- sediment-eating organisms that function like autonomous vacuum cleaners of the ocean floor -- play an enormous role in protecting coral from disease.

Tropical rainforests and coral reefs are both highly complex ecosystems that are rich in biodiversity. Coral reefs are often described as underwater rainforests. -- Maui Ocean Center photo Tropical ...

Beneath sea urchins’ exterior spines, rounded skeletons called tests are jewels of color, texture, and symmetry. There are hundreds of urchin species, and they’re found in every ocean on Earth, from ...