Video of Flexible Head Joint (VIDEO)

Smithsonian

Caption

Scientists demonstrate the anatomy of a barbeled dragonfish's jaws as they are fully opened, including the elevation of the head. At the connection between the head and flexible part of the vertebral column, the functional head joint is exposed by the movement and notably enhances the degree of cranial elevation.

Credit

Nalani Schnell, Muséum national d'Histoire naturelle

Usage Restrictions

News media use of the video files in relation to the publication in PLOS ONE are permitted.

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.