On 8/3/2012 9:49 AM, Hans Christian wrote:
> Hi all
>
> Recently I was out in the Nationalpark Thy in Northern Denmark, to record=
ambiences just after sunset, when I came across an extremely weak humming-=
sound. Barely audible without the recorder gain at max. It turned out to be=
hundreds of mosquitoes inside a small forest. I started recording, and the=
n when I made the announcement into the mic, I noticed the mosquito-hum rai=
sing in pitch for a short moment. I made different experiments, and it seem=
ed they only reacted to my voice each time, and not any other sounds I made=
.
>
> Has anyone come across that phenomenon? Is it a known fact that mosquitos=
can "hear" humans, and distinguish them from other sounds? I've never hear=
d of that.
>
> I put up the recording on SoundCloud, but it probably requires some good =
headphones to hear the phenomenon:
>
> http://snd.sc/NqgQhY
>
> (I speak to the mosquitoes in danish, but don't bother. I'm not saying an=
ything very intelligent anyway. After all, they are only mosquitoes...)
>
I'm no authority on mosquitoes however I remember reading once that
mosquitoes are attracted to people (and other animals) by the carbon
dioxide in the breath that is exhaled... It was probably your breath
when you speak that excites them...
--
--
Mitch Hill
(Sent from HP DV6T)
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