title: Kin recognition.
abstract: Many organisms, from sea squirts to primates, can identify their relatives. Understanding how and why they do so has prompted new thinking about the evolution of social behavior.
authors.affiliation: University of Illinois.
authors.forename: D W
authors.initials: DW
authors.lastname: Pfennig
authors.forename: P W
authors.initials: PW
authors.lastname: Sherman
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002628:Chemoreceptor Cells / Q000502:physiology; D003463:Cues; D011939:Mental Recall / Q000502:physiology; D012903:Smell / Q000502:physiology; D012919:Social Behavior