Mammals' inner ears are made up of the vestibule and three semicircular canals, which are involved with balance, and the cochlea, which is involved with hearing. The bone chambers and membranous ducts remain morphologically continuous even though distinct parts of the inner ear are responsible for various functions. The development of internal cochlear structures, including the primary and secondary bony laminae, the morphology of the spiral nerve ganglion, and the nature of cochlear coiling, including the total number of turns completed by the cochlear canal and the relative diameters of the basal and apical turns, are all included in the gross anatomy of the cochlea that has been related to auditory physiologies. The semicircular canals' general sizes, shapes, and orientations are connected to their sensitivity to head rotations and perhaps to locomotor movements. We may be able to learn more about the form and function of the inner ear by examining intraspecific variation, particularly in the size and positioning of the semicircular canals.