Red Ruffed Lemur (image) Wildlife Conservation Society Caption Madagascar's Makira forest is one of the world's great primary forests home to wildlife found nowhere else on earth including this red-ruffed lemur. Fifty-seven percent of all tropical forest species are dependent on primary forest habitat and the ecological processes they provide. Credit Julie Larsen Maher/Wildlife Conservation Society Usage Restrictions Credit: Julie Larsen Maher/Wildlife Conservation Society. 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.