Eggs After Sorting (image) Duke University Share Print E-Mail Caption Duke graduate student Eleanor Caves looks over a collection of African songbird eggs that have been sorted into their original clutches based on tiny numbers written on them by a meticulous collector. Although these eggs are all from the same species, their coloration and patterns differ dramatically. Credit Courtesy of Eleanor Caves Usage Restrictions Please credit Eleanor Caves, Duke University 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.