http://tags.library.upenn.edu/tag/animals+music PennTags Feed for /tag/animals+music PennTags Feed http://tags.library.upenn.edu/makerecord/url/634 http://tags.library.upenn.edu/makerecord/url/634 Researchers add mice to list of creatures that sing in the presence of mates <p>Includes audio examples! Full article in PLoS Biology, December 2005.<br /> </p>