Evolution of the cochlea Thus evidence from fossils demonstrate homoplasies for the detachment of the ear from the jaw. Furthermore, it is apparent that the land-based eardrum, or tympanic membrane, and connecting structures such as the Eustachian tube evolved convergently in multiple different settings as opposed to being a defining morphology. Evolution of the cochlea Cochlea is Latin for “snail, shell or screw” and originates from the Greek word κοχλίας "kohlias". The modern definition, the auditory portion of the inner ear, originated in the late 17th century. Within the mammalian cochlea exists the organ of Corti, which contains hair cells that are responsible for
Jock Stirrup Unit which was based at RAF Lossiemouth in March 1983: his duties centred around the instruction of trainee pilots on the SEPECAT Jaguar and, on 7 March 1983, Stirrup was carrying out a student progress check from the rear seat of his aircraft when they suffered a serious bird strike. Stirrup was unable to ascertain whether his student was conscious and forward vision through the canopy was obscured: one of his engines caught fire, and although ejecting from the aircraft would have been justified, not knowing whether the student was conscious or not, Stirrup managed to land at RAF Leuchars.