With terrifyingly sharp teeth arranged around a circular mouth, lampreys look about as primitive a vertebrate as you could imagine. But a new study finds that the animals have a surprising similarity ...

Sea urchins, which seem to spend their lives idly attached to undersea rocks, were considered simple creatures without eyes, ...

Unlike the brain and spinal cord, peripheral nerve cells, whose long extensions reach the skin and internal organs, are capable of regenerating after injury. This is why injuries to the central ...

Human brains (and the brains of other vertebrates) are able to process information faster because of myelin, a fatty substance that forms a protective sheath over the axons of our nerve cells and ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

The peripheral nervous system includes the nerves that connect the brain and spinal cord to the rest of the body. Peripheral neurons can be extraordinarily large, with their extensions reaching up to ...

The human sense of touch is a complex system that integrates diverse sensations such as pain, temperature, and pleasant ...

The clues were always there. Searing pain is often the first hint of pancreatic cancer. Mood and depression swings often accompany a cancer diagnosis ‒ and not just because patients are facing their ...

A Cedars-Sinai study has identified a previously unknown role for astrocyte cells in how the brain responds to damage and ...