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

Learn about Dunkleosteus, an ancient apex predator that ripped apart large fish with sharp bony blades that lined its mouth.

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

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 ...

Dear Doctors: I am a 77-year-old woman diagnosed by my orthopedist with reduced cartilage in my right knee, probably due to wear and tear and arthritis. I’m not in pain, but I have developed bone ...

The aquatic apex predator lived over 300 million years ago in the shallow waters covering present-day Cleveland. In A Nutshell Scientists discovered Dunkleosteus had far more cartilage in its skull ...

The human knee is a complex and problematic joint. I think it’s fair to say that it hasn’t adapted well to our greatly expanded life expectancy and trend towards obesity; painful osteoarthritis is the ...

Many people have knee pain during some phase of their life. For children, it usually occurs during growth as the body is getting used to its new size. For teenagers and young adults, knee pain usually ...

Methods for the study of cartilaginous airways represent technically very laborious and time-consuming procedures, many of these with the inevitable disruption or elimination of the distal bronchi and ...

In osteoarthritis of the knee, cartilage that should cushion the bones erodes, leaving people in pain. Anti-inflammatory drugs can offer some relief, but they can’t cure the disease or bring back ...

Arthritis is a general term that describes inflammation in joints. Osteoarthritis, also called degenerative joint disease, is the most common type of arthritis. It is associated with a breakdown of ...