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Re: ASYMMETRICAL OWL EARS



and a far more interesting question-is it the other way round south of
the equator?

-Betty Cunningham

darren.naish@port.ac.uk wrote:
> Matt Matt Matt, you forgot to mention the fact that some (all?) owls
> have asymmetrically positioned ears: one ear is literally higher up
> one side of the head from the other. This aids directional hearing. A
> question I have never had answered is if, in the species that
> exhibit it (I know that _Tyto alba_ does), this asymmetry is constant
> throughout populations (i.e. all individuals have the left ear higher
> than the right, or vice versa), or is subject to individual
> variation.
>