Add Yahoo as a preferred source to see more of our stories on Google. Everybody’s heard a duck quack before, but have you ever heard one quack for 30 seconds straight? Cheese and Quackers recently ...
There is an old wives’ tale that a duck’s quack has no echo. This has been proven not to be true in what can only be described as the best duck experiment ever. But the rumor has a basis in truth.
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