Edwin Giesbers / Blue-eyed / Sclater's black lemur (Eulemur flavifrons) male with arm on female's back, captive, endemic to Madagascar., Critically Endangered.

Enrique Lopez-Tapia / Common brown lemur (Eulemur fulvus) in tree. Andasibe-Mantadia National Park.

Bernard Castelein / Black Lemur (Eulemur macaco) male, Nosy Komba, Madagascar

Bernard Castelein / Black Lemur (Eulemur macaco) male, Nosy Komba, Madagascar

Bernard Castelein / Red-bellied Lemur (Eulemur rubriventer) pair, Ialasatra, Madagascar

Bernard Castelein / Crowned lemur (Eulemur coronatus) two females on ground in forest, Ankarana NP, Madgascar

Bernard Castelein / Crowned lemur (Eulemur coronatus), females on ground in forest feeding, Ankarana NP, Madagascar

Ernie Janes / Blue-eyed black lemur (Eulemur flavifrons) male, captive, occurs in Sulawesi. With digitally added leaves.

Cyril Ruoso / Malagasy Ground Boa (Acrantophis madagascariensis) swallowing Ring-tailed Lemur (Lemur catta) prey, Madagascar

Lorraine Bennery / Sonford's brown lemur (Eulemur sanfordi) sitting in tree. Montagne D'Ambre National Park, Madagascar.

Lorraine Bennery / White-fronted brown lemur (Eulemur albifrons) two climbing up vine in forest. Rainforests of the Atsinanana, Marojejy National Park, Madagascar.

Lorraine Bennery / White-fronted brown lemur (Eulemur albifrons) eating leaf in tree. Rainforests of the Atsinanana, Marojejy National Park, Madagascar.