PT - JOURNAL ARTICLE AU - Matacic, Catherine TI - How sign languages evolve AID - 10.1126/science.352.6284.392 DP - 2016 Apr 22 TA - Science PG - 392--393 VI - 352 IP - 6284 4099 - http://science.sciencemag.org/content/352/6284/392.short 4100 - http://science.sciencemag.org/content/352/6284/392.full SO - Science2016 Apr 22; 352