Re: Dog ears emit sound

["Dan Dugan" dandugan_1999]

> Yeah, the commercials come with the territory as does a degree of
> ignorance about "radio signals" but the phenomenon is still  
> interesting.
> An audible high pitched sound coming OUT of a little dog's ears??  
> Maybe
> the first wave of canine evolution toward echolocation? Maybe bat-like
> wings are next?  . . .Ok. Just kidding.

Sound emission from human ears is a known phenomenon. It's even used  
in a hearing test for infants in Britain! See link below or Google  
"otoacoustic emission."

<ttp://en.wikipedia.org/wiki/Otoacoustic_emissions>

-Dan Dugan