While our localization abilities vary by axis, we do have them in all three directions due to the combination of several mechanisms, none of which are actually 'left-to-right'.
http://en.wikipedia.org/wiki/Sound_localization
While our localization abilities vary by axis, we do have them in all three directions due to the combination of several mechanisms, none of which are actually 'left-to-right'.
http://en.wikipedia.org/wiki/Sound_localization