Female anglerfish are noteworthy for the small extensions that grow from their heads — called an esca — which illuminate and are used as bait to lure prey in the deep dark water. The aptly named ...

This Indo-Pacific stunner dons a kaleidoscope shell of greens, blues, reds, and oranges, with purple eyes that swivel independently. At 3-18 cm long, it packs a punch like a .22 bullet using club-like ...

The elusive Greenland shark photographed at the floe edge of the Admiralty Inlet, NU. (Photo: Hemming1952/Wikimedia Commons, CC BY-SA 4.0) With vast expanses of icy waters, extreme depths and the ...

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 ...

In a remarkable encounter filmed at more than 3,700 feet below the surface of the Indian Ocean, a deep-sea creature resembling an alien glyph has captivated millions online. The footage shows the ...

Scientists call it a siphonophore Apolemia, but you can call it the world’s longest “long stringy stingy thingy,” the giant alien tentacle or just “the entity.” An international team of ocean ...

The Hadal Trenches are located in the deepest depths of the ocean, from around 3.6 to 6 miles underwater. It’s an alien world, freezing cold with crushing pressure. However, an ecosystem unlike any ...

For an animal, surviving in the ocean’s deepest trenches requires remarkable adaptations: a gelatinous body that can withstand pressure, bioluminescent features to guide it, and a transparent ...

The little creatures called hyoliths covered the bottoms of the oceans, but didn't appear to fit the pattern of evolution of animals that came before or after them You can save this article by ...