http://sci-toys.com/scitoys/scitoys/biology/electric_fish/fish9.wav The siren song of Gnathonemus petersii http://blog.makezine.com/archive/2009/05/the_siren_song_of_gnathonemus_peter.html?CMP=OTC-0D6B48984890 2009-05-28 http://makezine.com/images/logos/rss_icon.jpg