title: Language as an emergent group-level trait.
abstract: Following Smaldino's definition, we claim that language is also an emergent group-level trait, and propose two facets (human groups tend to organize in a way to efficiently trigger language and linguistic interactions can render formation of certain social organization) to verify this statement, both of which also provide a general framework to address the future work about group-level traits.
authors: Department of Electrical and Computer Engineering,Johns Hopkins University,Baltimore,MD 21218.susan.shuai@gmail.comhttp://www.ece-jhu.org/
authors: Lan
authors: L
authors: Shuai
authors: Department of Linguistics,University of Hong Kong,Pokfulam Road,Hong Kong.gtojty@gmail.comhttp://www.linguistics.hku.hk/
authors: Tao
authors: T
authors: Gong
mesh_terms: D003299:Cooperative Behavior; D003468:Cultural Evolution; D006126:Group Processes; D006801:Humans; D012641:Selection, Genetic