Inner ear Is the ancient part of the ear ... longer than that of reptiles. In mammals, a cartilaginous pinna is usually present about the external opening to amplify and channel sound waves. Evolution ...

and the inner ear (see graphic). The outer ear consists of a pinna and an external auditory canal and is responsible for funnelling sound waves into the ear. The middle ear has an eardrum and ...

The ear can detect a time difference as slight as 30 microseconds ... The first chart (left) shows the delays (in microseconds) caused by reflections from the inner pinna ridge which determine ...

New research on the inner ear morphology of Neanderthals and their ancestors challenges the widely accepted theory that Neanderthals originated after an evolutionary event that implied the loss of ...