| Johansson, Working backwards from modern language to proto-grammar, 2006 | :: | |
| Knight, Language co-evolved with the rule of law, 2006 | :: | |
| Pika,Liebal, Differences and similarities between the natural gestural communication of the great apes and human children, 2006 | :: | |
| Scott-Phillips, Why talk: an Adaptationist Approach, 2005 | :: | |
| Selten,Warglien, The emergence of simple languages in an experimental coordination game, 2007 | :: | |
| Smith,Smith,Blythe,Vogt, Cross-situational learning: a mathematical approach, 2006 | :: | |
| Zlatev,Project, Stages in the Evolution and Development of Sign Use (SEDSU), 2006 | :: |