Two kinds of evolution tangle thinking about the origins of speech. The first is biological evolution that adapted our bodies to the task of speaking. Then there is the linguistic evolution that shaped the languages we speak. If we define evolution vaguely as change over time, we can agree that both bodies and languages evolve. But if we speak more precisely and say that evolution refers to the Darwinian processes that produce change, can we also say that language really evolves? A recent report in the journal Cognitive Processing says yes, linguistic evolution is more than just analogous to biological evolution; it uses Darwinian processes. If the report’s authors are correct, two evolutionary processes were triggered when people began to speak. One adapted our bodies to speech, the other adapted speech to our community. The dual evolution is very much like the co-evolution of brain and language that Terrence Deacon proposed in his book The Symbolic Species.