Figure 3. Empirical Data on a Frog Chorus (image) Osaka University Share Print E-Mail Caption Empirical data on a frog chorus; male frogs alternate their calls over a short time scale, collectively switching between calling and silent states. Credit Osaka University 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.