The bones of Quetzalcoatlus (IMAGE) University of California - Berkeley Caption A sketch of the bones of Quetzalcoatlus northropi. When walking, the animal had a unique gait unlike any other, and distinctly different from that of the vampire bat. Credit Drawing by John Conway Usage Restrictions none License Original 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.