Sexual auditory dimorphism is a long established and well documented fact in species besides humans:
Quote:
|
It is well known that the auditory systems of anurans are well adapted to detect species specific vocalizations, and that the behavioral response to these vocalizations often differs between the sexes. Sex differences in auditory systems have been found to underlie these gender specific behaviors in multiple species.[3][15] In one particularly well-studied example, Peter Narins and his colleagues have examined sex differences in the auditory system of the Puerto Rican rain frog, Eleutherodactylus coqui, in which males give a two-note, species specific call. In E. coqui, the call is not only species specific, but also divided into sex specific components. The two-note call, from which the “coqui” frog derives its name, consists of a 100 ms “Co” note at around 1.2 kHz, followed by a much longer duration “Qui” note at around 2 kHz.[3] Males of this species use this call in both territory defense and mate attraction, with the “Qui” note often being dropped out in aggressive interactions between males.[3] Using playback experiments, Narins et al. found that males and females respond to different aspects of the call, with males showing a strong vocal response to calls containing “Co” notes, and females being preferentially attracted to calls containing “Qui” notes.[3] Since the peripheral auditory system of anurans has been implicated in the detection of temporal and spectral features of male calls,[16] follow up experiments were performed on the two auditory organs of the inner ear, the amphibian papilla and basilar papilla.[17] Three major differences discovered in the auditory system help explain why, at a mechanistic level, male and female E. coqui are sensitive to different notes of the male call.
|
As in Coquis, so in humans.
Here is the full article:
http://en.wikipedia.org/wiki/Sex_dif...ensory_systems
Do note:
Quote:
In all three systems, the sensory systems of males and females are differently adapted to receive signals that are biologically useful and beneficial to survival or reproduction.
|
In most cases, it is essential to male sanity and survival *not* to hear certain things. Most notably; "Does this make me look fat?"
