Silicone model being tested in the lab (IMAGE) Anglia Ruskin University Caption Silicone model being tested in the lab Credit Twin vocal folds as a novel evolutionary adaptation for vocal communications in lemurs - Kanta Nakamura et al 2024 Usage Restrictions Credit must be given to the creator. License CC BY 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.