Archaeological discoveries of ancient animal burials are rewriting what scientists know about grief in the animal kingdom, showing that mourning and emotional bonds existed far earlier than once ...

The teen enlisted the help of one of the world’s top experts when the specimens he collected grew into something he didn’t recognize, according to the National Oceanic and Atmospheric Administration.

An exploratory expedition describes two deep-sea, low-oxygen ecosystems in the Red Sea, including some surprising fish. The ...

The sea cucumber’s color is “unique,” researchers said, and its smaller number of tentacles (15 compared to 18 found in other related species) sets the animal apart. The species earns its name from a ...

Between 15 million and 6 million years ago, a drop in ocean crust production may have lowered sea level by 26 to 32 meters.

Many otherworldly deep-sea creatures, though, are so beautiful and mysterious that you won't believe they exist. Even in the ...