Researchers have long assumed that a tube in the famous Pikaia fossil ran along the animal’s back. But a new study turned the fossil upside down. By Carl Zimmer Over the past 500 million years, ...

Trawling restrictions not only benefit fish and shellfish; anemones and corals are also becoming more common, according to a ...

This eel-like fish lives on the seabed over 300 feet below the surface where it feasts on dead animals and protects itself from attack using a suffocating slime. When you purchase through links on our ...

Researchers found that the slime eel, or hagfish, known for deluging predators with mucus, tripled the size of its genome hundreds of millions of years ago. By Veronique Greenwood The hagfish, a ...

Pale, wormlike tubes in 890-million-year-old rock may be ancient sea sponges, a new study concludes. If confirmed, that controversial claim would push back the origin of the earliest sponges by about ...

The remarkable discovery of animal life beneath the seafloor shows that life finds a way even in the most extreme environments, potentially boosting hopes for finding life beyond Earth. reading time 4 ...

Scientists say sea monster is a new kind of animal. This unidentified specimen belonging within Relicanthidae is a sea creature that was previously thought to be a giant sea anemone (order Actiniaria) ...

Twenty years ago, researchers saw what they called a "mystery mollusc." Now, they've finally described it in detail... but ...

The deepest part of any of the world’s oceans, known as Challenger Deep, is a portion of the Mariana Trench that goes down to ...

Blue whales — the largest animals on Earth — aren't singing as much anymore, and that's got scientists concerned. A study published in PLOS analyzing six years’ worth of acoustic data collected from ...