 On an interpretation in terms of biological evolution, computationally emergent signaling of this sort can be seen as modeling communication in Vervet monkeys (Cheney &amp; Seyfarth 1990) or even chemical “signals” in bacteria (Berleman, Scott, Chumley, &amp; Kirby 2008). If interpreted in terms of learned culture, particularly with an eye to more complex signal combination, these have been offered as models of mechanisms at play in the development of human language (Skyrms 2010).  A simple interactive model in which signaling emerges in a situated population of agents harvesting food sources and avoiding predators  is available in the Other Internet Resources section below.