Cyril Ruoso / White-footed sportive lemur (Lepilemur leucopus) in Madagascar ocotillo (Alluaudia procera) tree. Berenty Reserve, Madagascar.

Cyril Ruoso / White-footed sportive lemur (Lepilemur leucopus) with large eyes, resting during the day, Madagascar.

Cyril Ruoso / White-footed sportive lemur (Lepilemur leucopus) peering out of hole in tree, Madagascar, September.

Konrad Wothe / White-footed Sportive Lemur (Lepilemur leucopus) in Alluaudia ascendens tree, Andohahela National Park, South Madagascar, Africa

Konrad Wothe / White-footed Sportive Lemur (Lepilemur leucopus) on tree, Berenty Reserve, South Madagascar, Africa

Konrad Wothe / White-footed Sportive Lemur (Lepilemur leucopus) in Alluaudia procera tree, Berenty Reserve, South Madagascar, Africa

Terry Whittaker / White-footed sportive lemur (Lepilemur leucopus) sitting in tree hollow. Berenty Reserve, Madagascar.

Terry Whittaker / White-footed sportive lemur (Lepilemur leucopus) sitting in tree hollow. Berenty Reserve, Madagascar.

Terry Whittaker / White-footed sportive lemur (Lepilemur leucopus) in tree at night. Berenty Reserve, Madagascar.

Nick Garbutt / White-footed sportive lemur (Lepilemur leucopus). Berenty forest, southern Madagascar.