Puerto Rican Anole (IMAGE) University of New South Wales Caption A Puerto Rican anole is shown extending its colouful dewlap, or neck pouch. These lizards use this visual technique to attract partners and repel rivals in darkened rainforests. Credit Credit: Terry Ord, UNSW. Usage Restrictions In association with the research License Licensed content 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.