Rain Forest in Panama (image) University of Utah Share Print E-Mail Caption The rainforest in Panama is highly diverse. A new study showed that herbivores and plant defenses against them drive the extreme diversity in tropical rainforests. Credit Thomas Kursar Usage Restrictions Non-commercial, with attribution 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.