Paul Williams / Spectral tarsier (Tarsius tarsier) returning to sleep in fig tree after a night hunting, Tangkoko, Sulawesi, Indonesia.
Paul Williams / Javan slow loris (Nycticebus javanicus) rescued by Jakarta Animal Aid Network (JAAN), in holding cage, Animal rescue centre, Jakarta, Indonesia. Critically Endangered. Post production to remove light...
Bernard Castelein / Ring-tailed lemur (Lemur catta) female carrying two babies. Anjaha Community Conservation Site, near Ambalavao, Madagascar.
Enrique Lopez-Tapia / Common brown lemur (Eulemur fulvus) in tree. Andasibe-Mantadia National Park.
Konrad Wothe / Ring-tailed lemur (Lemur catta) with baby feeding from very thin branches, Berenty Reserve, Madagascar.
Nick Garbutt / Golden-crowned Sifaka (Propithecus tattersalli) leaping through forest canopy. Forests adjacent to the village of Andranotsimaty, near Daraina, northern Madagascar. Critically endangered species.
Inaki Relanzon / Ring-tailed lemur (Lemur catta) Anja Private Reserve, near Ambalavao, Central Madagascar.