Monkey Migration Out of the Amazon Basin (image) Duke University Share Print E-Mail Caption As climate and sea levels fluctuated, monkeys dispersed out of the Amazon Basin and evolved in their new ranges. The black outlines represent present-day landmasses, while green and yellow shading represents lowland and highland landmasses during the Late Oligocene and Early Miocene. Credit Richard Kay, Duke 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.