Astonishingly, the ocean teems with brainless creatures that thrive using instinct and nerve networks. Jellyfish, sea sponges, starfish, sea cucumbers ...

Beach safety officials warn that dangerous marine life - specifically early-arriving jellyfish - are creating painful problems for swimmers along the Gulf Coast this June.

Sea anemones may hold the key to the ancient origins of body symmetry. A study from the University of Vienna shows they use a ...

Our planet is home to some of the most fascinating creatures that can survive without a brain and thrive without a complex ...

Scientists say they have discovered three previously unknown, unnamed species of sea spider off the U.S. West Coast that ...

Heat-trapping methane may be best known for the dangers it poses to humans and Earth’s atmosphere, but in the dark depths of ...

Art often imitates life, and sometimes animals do, too. The enormous jellyfish seen in this YouTube video bears a striking ...

After seeing the pain caused by a plastic straw becoming lodged in a sea turtle's nose, a global call to action was made to ban them.

The latest addition is the Marine Organizational Body Size (MOBS) database, an open-access resource that—as its name ...

In the 19th century, a father-son team fashioned sea animals from glass to be classroom aids. Today, the fragile pieces are prized by museums.