Golden-crowned Sifaka (Propithecus tattersalli) - Fact sheet from EDGE, a conservation organization that focuses specifically on threatened species that represent a significant amount of unique evolutionary history. Indriidae - Information from Wikipedia on this family of lemurs from Madagascar. Indri (Indri indri) - Fact sheet from EDGE, a conservation organization that focuses specifically on threatened species that represent a significant amount of unique evolutionary history. Bemaraha Woolly Lemur: Avahi cleesei - Photograph and information from ARKive on this species endemic to Madagascar and named in honour of the British comedian John Cleese. Eastern Woolly Lemur: Avahi laniger - Photographs and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation. Western Woolly Lemur: Avahi occidentalis - Photographs and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation. Indri: Indri indri - Many videos and photographs with details of classification, status, description, range, habitat, biology, threats and conservation.