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
Where the Sidewalk Ends (poem) the children because they know the place where the sidewalk ends. Looking more in depth at this poem makes clear what Shel Silverstein is saying. Do what the children do. They know the place where the sidewalk ends. And in doing so, you will find the joy and passion for life that they have. When he says to follow the markings of the children and you will find the place where the sidewalk ends, it is not a literal command to physically follow them. Rather he is saying put on the mindset of a child and you will, in turn,