... actually promotes collapse and is an adaptation to the turtle's natural environment in which large numbers of deep dives are performed annually. * Author for correspondence ( d.kelliher@ucc.ie ) 2 3 2012 2 5 2012 © 2012. 2012 leatherback turtle Dermochelys trachea Boyle's...

... have a cartilaginous tracheal design that will facilitate progressive collapse with increasing depth, whereas shallow divers have rigid upper portions of the tracheae that remain patent during dives. Three novel findings for Dermochelys were revealed by this study. First, it is evident that great...