Imagine sinking hundreds of feet below the ocean’s surface. The blue fades. The warmth disappears. By the time you reach about 650 feet down, sunlight is barely a memory. Go deeper, and it’s complete ...

MBARI researchers have discovered a remarkable new species of sea slug that lives in the deep sea. Bathydevius caudactylus swims through the ocean's midnight zone with a large gelatinous hood and ...

In a new study published in Ichthyological Research, an international team of researchers studied the organs that produce light in Vinciguerria mabahiss, a rare species of fish from the Red Sea. This ...

BEACHGOERS were stunned when the sea turned an electric blue colour following a rare natural phenomenon. The magical display ...

One man travelled hundreds of miles to photograph the "electric blue waves" at Penmon Point in Angelsey.

They had to sea it to believe it. Researchers near California waters found an elusive, deep sea “mystery” mollusk that operates as a Venus fly trap far below depth. The creature is also spectacularly ...

Whether it's the winter dance of the Northern Lights or the summertime glow of fireflies, displays of natural light fascinate us humans. Bioluminescence is the source of many such light shows in the ...

Researchers have discovered a new species of glowing sea slug deep in the ocean’s midnight zone. Monterey Bay Aquarium Research Institute (MBARI) scientists said in a press release on Tuesday that ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Researchers have ...

Darkness dominates most of the ocean. Sunlight fades quickly as you descend, and by the time you reach the deep sea, natural light disappears entirely. Yet the ocean is far from black. Many marine ...

Monterey Bay researchers have discovered a remarkable new species of sea slug that lives in the deep sea. The glowing nudibranch swims through the ocean’s midnight zone with a large gelatinous hood ...