Interesting Animals - Ducks
A duck's quack doesn't echo, and no one knows why.
(Please don't rush out and do any ducknapping, Mythbusters (the TV show) debunked this. Using a bunch of expensive studio equipment, they found that yes, it does echo, but the quack so closely resembles the echo it envelopes it.)
(Please don't rush out and do any ducknapping, Mythbusters (the TV show) debunked this. Using a bunch of expensive studio equipment, they found that yes, it does echo, but the quack so closely resembles the echo it envelopes it.)
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