The cranio-vertrebral joint in fish is like any other intervertebral joint. The head is not any more mobile on the spinal column than any other two vertebrae are on each other. Fish can’t move its ...

Northwestern Medicine scientists have uncovered new details about how the spinal column forms in developing vertebrates, according to a study published in Developmental Cell. While it has been ...

In fish, the pelvic girdle is not attached to the vertebral column. As a result, any weight put on girdle would push it into soft tissues. In amphibians, girdles and limbs become attached to vertebral ...