The top image shows fluorescently labeled cells in the spinal cord of a zebrafish recovering one week after an injury, and the bottom image shows recovery four weeks after an injury. Researchers ...

Edinburgh scientists hope the results of a study into the nervous systems of a species of small exotic fish could hold clues to new therapies for people with paralysing spinal cord injuries.

a fish that uses the dorsal fin for intimidation rather than fishing. Tracer injections were used to locate the motor neurons in the spinal cord and study the differences in motor neuron positioning.