ORIGINAL: Germ
Atlas I think what Rob is asking is why all of a sudden is everyone hearing the "growl" now. Is because we have a name for it now, or is it all mental.
I'm sure it is both.................and certainly there are gonna be plenty of guys that slap that label on any grunt they hear out of the ordinary. I HIGHLY doubt we know each and every sound a deer makes and why.............assuming that would be silly. They don't even have a grasp on human behavior yet and some scientists will readily admit we may know as little as 5-10% of what actually goes on in the human body.