Members of the 500 brothers collective gather outside the prefecture on April 2nd, 2017, in Cayenne, French Guiana, following negotiations between representatives of the French government and a French Guianese group over putting an end to general strike over living conditions. (Photo: Jody Amiet/AFP/Getty Images)
Was the First Song a Lullaby?
Two Harvard University researchers put forward an intriguing hypothesis. By Tom Jacobs (Photo: Janko Ferlic/Getty Images) Why do…