Bonobos Resting (image) PeerJ Share Print E-Mail Caption During resting, bonobos produce peep vocalizations. Credit CC-BY. Credit: Zanna Clay/Lui Kotale Bonobo Project Usage Restrictions None Share Print E-Mail 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.