Evolution of the cochlea of the ear, consisting of the scala media, the scala tympani, and the scala vestibuli. Regarding mammals, placental and marsupial cochleae have similar cochlear responses to auditory stimulation as well as DC resting potentials. This leads to the investigation of the relationship between these therian mammals and researching their ancestral species to trace the origin of the cochlea. This spiral-shaped cochlea that is in both marsupial and placental mammals is traced back to approximately 120 million years ago. The development of the most basic basilar papilla (the auditory organ that later evolved into the Organ of Corti in mammals) happened
Jock Stirrup Security Review. In April 2013, Stirrup was appointed Knight Companion of the Order of the Garter by the Queen Elizabeth II. He was appointed as an honorary Marshal of the Royal Air Force in the Queen's 2014 Birthday Honours. In 2013 Stirrup, along with Field Marshal Lord Guthrie and Admiral of the Fleet Lord Boyce, called upon the British Government to derogate from the European Convention on Human Rights for the duration of deployed operations. They were concerned that the increased risk of prosecution faced by commanders would lead to a generation of risk-averse military leaders. In August 2014, Stirrup