The biological process whose specific outcome is the progression of a larynx from an initial condition to its mature state. This process begins with the formation of the larynx and ends with the mature structure. A larynx is a continuation of the pharynx that is involved in breathing, sound production, and protecting the trachea against food aspiration. [ http://www.ncbi.nlm.nih.gov/pubmed/28177282 GOC:krc ]