1. "The Music of Nature and the Nature of Music"

     By: Patricia M. Gray, Bernie Krause, Jelle Atema, Roger Payne, Carol Krumhansl, Luis Baptista

     Published: Science (5 January, 2001)

2. "Music of the Hemispheres"

     By: Mark Jude Tramo (BIO)

     Published: Science (5 January, 2001)

3.  Birds, Whales as Musical as Humans

     By Larry O'Hanlon

     Published:  Discovery.com News

4.  Music Without Borders

     By Susan Milius

      Published:  Science News  (April 15, 2000)