- #1
- 1,957
- 7
QUACK...quack quack
http://www.cnn.com/2003/TECH/science/09/08/duck.quack/index.html
http://www.cnn.com/2003/TECH/science/09/08/duck.quack/index.html
A British study has debunked an urban myth -- that a duck's quack does not echo. ...The tests revealed that a duck's quack definitely echoes, just like any other sound, but perhaps not as noticeably.