Evolution of inner ear neuroanatomy of bats and implications for echolocation - Nature

A new Nature research paper provides support for a controversial evolutionary classification of bats, based on the anatomy of their inner ears

. The canal wall shows large fenestrae between the basal ½ turn and 1½ turn, but it becomes wall-less in the apical ½ turn.. Outline illustration and CT scan slice across the modiolar section of the fenestral pattern up to ½ turn and the wall-less pattern in apical ½ turn.D.

Transparent CT visualization and cut-away section of local details of fenestrae in the internal auditory meatus.. Intact cochlea in the medial view of the internal auditory meatus to show the fenestral wall; and. Modiolar section to show the continuous variation of fenestral pattern and the wall less pattern along the length of the cochlea.

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