What I was seeking was credible research or information on the subject, for a theory is well and good, and when pursued it will provides knowledge, but going no further than a theory will do no good, for a person could theorize that because our ears face forward, we are incapable of hearing behind us.
That's laughable. It's NOT theory. The extent of your knowledge of the subject is not so far-reaching.
How hard do you think it is for a study to prove that sounds are less localizable when they originate above the plane of your ears than below the plane of your ears? Not hard at all. That's easily testable.
And the reasons? The hypotheses are simple enough to test, as well.
And how much do you think this has been studied? Ad nauseum.
What do you think is the reason why we can hear sounds that originate in front of us better than those that originate behind us? Do you think you could devise a test that would confirm the observation that sounds that originate in front of us are easier to hear than those that originate behind us? Could you hypothesize as to why this is so? And could you devise a test to prove (or disprove) your hypothesis?
Why do you think we have 2 ears instead of 1? It's not simply because God made us that way. Are there advantages to having 2 ears on either side of your head as opposed to one single ear on your forehead? Are there advantages to having 2 ears on either side of your head as opposed to, say, one ear on the top of your head and one ear on your chin? Disadvantages? Do you think you would be able to localize vertical sounds better if you had one ear on top your head and one on your chin?
Do you think there are any ways to alter the directional cues that your ears' specific structures provide?
Jeez. You sure did a lot of research on the subject of vertical sound localization, didn't you? All you have to do is do a
Google search to get loads of information, none of which is theory.
Yes, not surprisingly, the shape of your ear affects how you hear in nany number of ways, all proven, none theory.