Evolution of the cochlea 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 translating the vibrations it receives from surrounding fluid-filled ducts into electrical impulses that are sent to the brain to process sound. This spiral-shaped cochlea is estimated to have originated during the early Cretaceous Period, around 120 million years ago. Further, the auditory innervation of the spiral-shaped cochlea
Jock Stirrup Secretary Liam Fox announced that General Sir David Richards, the then Chief of the General Staff, would succeed Stirrup as Chief of the Defence Staff in October 2010. Richards took over on 29 October 2010 and Stirrup was created a life peer as Baron Stirrup, of Marylebone in the City of Westminster. He was introduced into the House of Lords on 1 February 2011, where he sits as a crossbencher. Stirrup officially retired from the RAF on 4 April 2011. The following month Stirrup gave detailed evidence to the Commons Defence Select Committee on the UK's recent Strategic Defence and