How can infinite language be generated from a finite mind? How could language have evolved from apes? How could apes have evolved from protozoa? How could protozoa have evolved from rocks? In a highly readable series of thought experiments, the first half of How the Brain Evolved Language retraces the steps by which Darwinian evolution selected first one-celled animals which could communicate among themselves, and then multicelled organisms which could communicate within themselves.. "The second half of How the Brain Evolved Language explores the particular ways in which universal evolutionary designs - universal minimal neural networks - have been adapted for human language.