A new study published in the journal Frontiers in Neuroscience has found a link between vocal repertoire and relative size of key regions of the brain. Dr. Dunn and Dr. Smaers report a positive correlation between vocal repertoire size and the relative size of cortical association areas in non-human primates. Image credit: Herbert Aust. The vocal tract and larynx is similar in form and function amongst virtually all terrestrial mammals, including...
