This mouth structure wasn’t an evolutionary relic, however. It was actually a specialized feature that allowed them to thrive. It now appears Dunkleosteus boasted a head and jaw more reminiscent of a ...

About 360 million years ago, the shallow sea above present-day Cleveland was home to a fearsome apex predator: Dunkleosteus terrelli. This 14-foot armored fish ruled the Late Devonian seas with ...

Dunkleosteus used strong muscles, wide opening jaws, and hidden cartilage structures to bite large prey with speed and force.

It used to be thought that sea urchins only had a primitive nervous system, but new research has found that they are far more complex than that. The entire body of a sea urchin is what researchers are ...

This story appears in the June 2015 issue of National Geographic magazine. “This is what the end of the world looks like,” says Yusup Kamalov, sweeping his hand toward the scrub-covered desert ...

China’s assertiveness in the South China Sea has steadily increased, resulting in heightened tensions with Southeast Asian claimant states, particularly the Philippines, at the Second Thomas Shoal in ...

Ohio’s ancient sea monster, the Dunkleosteus terrelli, is revealed in new clarity by a recent study that shows just how ...

About 360 million years ago, long before dinosaurs walked the Earth, a terrifying predator ruled the shallow seas that once covered what is now Cleveland, Ohio. Its name was Dunkleosteus terrelli, a ...

Anatomy is the field of biology that studies the structure of living things. Anatomy focuses on the composition, structure and location of the parts of organisms tissues, organs and systems as well as ...