Acoustics professor proves ducks DO echo after all #link 2003.09.12 @ 21:47 // Aux // You were reading Ducks do echo after all, a link posted with comment by MacDara Conroy. It is filed under Aux and was published in September 2003. If you liked what you read here, you can follow this site on Twitter @MacDaraBlogs or via reader feed, and find many more entries in the Archive. You can also buy me a Ko-fi.