Deep down in the sea, where no light penetrates and where the availability of food is very low, life somehow exists in ways that can be considered str.

Reaching over 30 feet long, the mysterious giant oarfish is the real-life "sea serpent" behind centuries of myths and legends ...

A mysterious deep-sea squid filmed 4.1 km below the Pacific can disguise itself as the ocean floor, raising new questions about hidden marine life and what we still don’t know.

Scientists find a deep-sea coral ecosystem over 100 years old, raising urgent concerns about bottom trawling in the South Pacific.

Over the long and complicated course of evolutionary history, mammals independently turned towards water to make a home multiple times. While many of the warm-blooded animals that abandoned dry land ...

Find out what fossils have revealed about ichthyosaurs, which included the biggest marine reptile that ever lived.

Our limited understanding of the metabolism of our microbial ancestor is a sizeable gap in our knowledge of how complex life originated. Resolving whether our closest microbial relatives had ...