The Golden Crowned Sifaka, Propithecus tattersalli (image) Instituto Gulbenkian de Ciencia Share Print E-Mail Caption The golden crowned sifaka, Propithecus tattersalli, is a lemur living in small social units in the north of Madagascar. Its distribution is very limited geographically, and it is considered as a critically endangered species by the IUCN (International Union for Conservation of Nature). It still harbors high levels of genetic diversity as a result of a complex demographic history. The role played by its social structure still needs to be investigated. This picture shows two members of a social group. There are nine recognized species of sifakas in Madagascar, and all have similar social structure with only two reproducing adults and between two and four members. Credit Erwan Quéméré Usage Restrictions Credits should be mentioned every time this image is used. 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.