Muriqui Female and Infant (IMAGE) National Evolutionary Synthesis Center (NESCent) Caption Muriqui monkeys of southeastern Brazil are among the world's most endangered monkeys. Credit Photograph by Carla B. Possamai Usage Restrictions None 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.