(CNN) — Only a scattering of light penetrates the deep water, more than 300 feet beneath the ocean surface off the coast of Guam. It’s like twilight to the human eye, even in the middle of the day.

A team of researchers has published a detailed description of the undersea creature previously dubbed the “mystery mollusk” due to its bizarre body. The animal’s scientific name is Bathydevius ...

By Liz Kimbrough A transparent goby fish drifted through the darkness, its skeleton visible through paper-thin skin. Nearby, a sea slug wore yellow polka dots like a party dress, while an orange fish ...

The deep sea is home to weird and wonderful creatures that, over millions of years, have evolved specific traits to survive the extreme conditions of their habitat. These adaptations to their ...

It floats, it drifts, it doesn’t break down. Plastic in the ocean is everywhere, but now it’s doing more than polluting. It’s ...

Sea creatures have adapted to help them thrive in extreme environments. Unusual features allow them to live thousands of feet below the surface. Underwater robots give researchers a glimpse at some of ...

GUAM — Only a scattering of light penetrates the deep water, more than 300 feet beneath the ocean surface off the coast of Guam. It's like twilight to the human eye, even in the middle of the day.

A mining-machine test on the deep-ocean floor resulted in species diversity declining by roughly 32% in the tracks of the ...