Baboons (IMAGE) CNRS Caption Baboons raised in semi-liberty produce about ten vocalizations, associated with different ethological situations, that may be considered as proto-vowels, at the dawn of the emergence of speech. Credit Laboratoire de Psychologie Cognitive (CNRS/Aix-Marseille Université) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.