Lorraine Bennery / Crowned lemur (Eulemur coronatus) jumping in forest canopy. Analamera National Park, Madagascar.

Suzi Eszterhas / Crowned lemur (Eulemur coronatus) mother with twin infants, East Coast of Madagascar.

Inaki Relanzon / Female Crowned lemur (Eulemur coronatus) portrait, Ankarana Special Reserve, Ambilobe, North Madagascar, November

Inaki Relanzon / Female Crowned lemur (Eulemur coronatus) portrait, Ankarana Special Reserve, Ambilobe, North Madagascar, November

Inaki Relanzon / Crowned lemur (Eulemur coronatus) female, Ankarana Special Reserve, Ambilobe, North Madagascar.

Thomas Marent / Crowned Lemur (Eulemur coronatus) female with sleeping baby, Ankarana Special Reserve, Madagascar

Thomas Marent / Crowned Lemur (Eulemur coronatus) female, Ankarana Special Reserve, Madagascar

Pete Oxford / Crowned Lemur (Eulemur coronatus) male on 'tsingy', vulnerable, Ankarana Special Reserve, northern 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

Paul Bertner / Crowned Lemur (Eulemur coronatus) group licking salt off shirt, Ankarana Special Reserve, Madagascar

Bernard Castelein / Crowned lemur (Eulemur coronatus) male in tree, Ankarana National Park, Madagascar