While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...

Explores the anatomy and functions of human joints, categorizing them into three main types: fibrous, cartilaginous, and synovial. It details the characteristics and subtypes of each joint type, ...

Cartilaginous fish Although little is known about mating systems in sharks and other cartilaginous fishes, there is evidence that some species such as tiger sharks (Galeocerdo cuvier) could be ...

But we’ve learned a lot about the history and evolution of sharks from their fossilised teeth. ‘We think early sharks developed a cartilaginous skeleton because it better suited their lifestyle,’ ...

Analysis revealed cavitated joints in the cartilaginous fish, but not in lampreys. Additionally, the cartilaginous fish exhibited certain proteins and developmental processes that are shared with ...