Perhaps the question could be reframed as, "What are the evolutionary advantages of perceiving wavelengths of 1.5 to 4 cm, over not perceiving these wavelengths?" I would imagine that the upper limit of human hearing was developed well in advance of having to distinguish "zoo" from "sue".
In my mind's eye [sic], I see wavelength more so than frequency in sound transmission / perception.
On 2011, Feb 2, at 2:14 PM, Piotr Majdak wrote:
thank you all for
the many responses. Below I try to sort and summarize the
Reasons why extended (>8 kHz) high-frequency
hearing may be important (besides sound localization!) :
Piotr Majdak wrote:
I'm looking for the reasons for the good high-frequency* hearing in
The reasons I have until now are actually the obvious ones:
* Pinna localization cues
* Interaural level cues (ILD, they actually start to work from around 2
What do you think: if there were no need for the ILD and pinna cues,
would there be any other reasons?
*) say, above 8 kHz