Editing Silence (section)

===History===
[[Joseph Jordania]] has suggested that in [[social animals]] (including [[humans]]), silence can be a sign of danger. Many social animals produce seemingly haphazard sounds which are known as [[contact calls]].<ref>{{cite journal |last1=Macedonia |first1=Joseph M. |title=Individuality in a contact call of the ringtailed lemur (Lemur catta) |journal=American Journal of Primatology |date=1986 |volume=11 |issue=2 |pages=163–179 |doi=10.1002/ajp.1350110208|pmid=31979454 |s2cid=4839396 }}</ref> These are a mixture of various sounds, accompanying the group's everyday business (for example, [[foraging]], [[feeding]]), and they are used to maintain [[Sound|audio]] contact with the members of the group. Some social animal species communicate the signal of potential danger by stopping contact calls and freezing, without the use of [[alarm calls]], through silence. [[Charles Darwin]] wrote about this in relation with [[wild horse]] and cattle.<ref>{{cite book | title = [[The Descent of Man, and Selection in Relation to Sex|The Descent of Man]] | author = Charles Darwin |year = 2004 | publisher = Penguin Books. pg. 123 | location = London}}</ref> Jordania has further suggested that human [[humming]] could have been a contact method that early humans used to avoid silence.<ref>{{cite journal|last1=Jordania|first1= Joseph|date= 2009|title= Times to Fight and Times to Relax: Singing and Humming at the Beginnings of Human Evolutionary History|journal= Kadmos|volume= 1|pages= 272–277|doi= 10.32859/kadmos/1/252-276|s2cid= 162571333|url=http://www.josephjordania.com/files/57-Times-to-fight-and-times-to-relax-Kadmos.pdf|archive-url=https://web.archive.org/web/20181019165513/http://www.josephjordania.com/files/57-Times-to-fight-and-times-to-relax-Kadmos.pdf|url-status=usurped|archive-date=October 19, 2018}}</ref> According to his suggestion, humans find prolonged silence distressing (suggesting danger to them). This may help explain why lone humans in relative sonic isolation feel a sense of comfort from humming, whistling, talking to themselves, or having the TV or radio on.