People repost the same old urban legends, and no one knows why.
http://www.snopes.com/critters/wild/duckecho.aspActually, they'll believe anything printed shoved in front of their noses and never bother to conduct even the slightest bit of independent research.
Good On Ya!!
Thanks for the link. I was trying to figure how this could possibly be true. I was coming up with Zer0. (I am a part time physicist)