PARADOX

[Lawr]

I heard that it doesnt, but a quack itself sounds like echo to me.

I can understand that, I hear them every morning!

[Boosk]

Great Moments in Science - Quacks Don't Echo

I find it strange that someone would actually want to experiment on a duck's quack...

[Quindiana Jones]

Scientist: "We've discovered something amazing!!!! You'll definitely want to hear this."
Person being talked to by Scientist: "OMG! You've found a cure for cancer?? You've discovered how to travel faster than light???"
Scientist: "Hell no! But we have discovered that quacks don't echo!"
PbttbS: "Bugger me sideways and call me Charlie! That is amazing!"
Scientist who actually read the article linked by Boosk: "WRONG! It's actually that the echo is such a weird echo, that is is lost in the original sound of the quack. I'm glad I wasted my time on that one."
Scientist and PbttbS: "Daym!"

I think that is what happened when the scientists discovered this incredibly piece of info.

[PuPu]

I think they do echo, but we just can't hear it very well. It probably has something to do with the frequency and wavelengths of the quack.

[escobert]

I think this was tested on Mythbusters and they proved it true - a duck's quack just doesn't echo. I can't remember if scientists isolated exactly why, though I'd assume it has to do with the nature of the sound waves of their quacks.

I saw that one

[Ashi]

I heard that it doesnt, but a quack itself sounds like echo to me.

I can understand that, I hear them every morning!

My family has a mallard that lives between cats in their yard. I heard it quite often, too.
Except it never made me mad.

[o_O]

Ah, I must've misremembered that episode.

So did I. I could've sworn they didn't bust it.