Sandesh Kadur / Bamboo lemur (Hapalmur griseus) sitting on tree stump. Andasibe-Mantadia National Park, Madagascar.

David Pattyn / Diademed sifaka (Propithecus diadema diadema) pair, Maromizaha Reserve, Andasibe Mantadia area, eastern Madagascar. August.

Nick Garbutt / Male Indri (Indri indri) reaching for leaves / foraging in forest understorey. Mitsinjo Reserve, Andasibe-Mantadia National Park, eastern Madagascar. Endangered.

Nick Garbutt / Adult male Diademed Sifaka (Propithecus diadema) 'skipping / dancing' across open ground between forest fragments, eastern Madagascar.

Mark Carwardine / Stephen Fry and Mark Carwardine with Brown lemurs on Lemur Island in Andasibe-Mantadia National Park, eastern Madagascar, while filming for BBC TV series 'Last Chance to See', November 2008

Alex Hyde / Madagascar reed frog {Heterixalus madagascariensis} in front of waterfall, montane rainforest. Andasibe-Mantadia NP, Eastern Madagascar.

Alex Hyde / Giant millipede {Aphistogoniulus sp} running across leaf litter on rainforest floor. Andasibe-Mantadia National Park, Eastern Madagascar.

Alex Hyde / Indri (Indri indri) portrait, climbing tree, tropical rainforest, Andasibe-Mantadia National Park, Eastern Madagascar. IUCN Endangered Species.

Alex Hyde / Indri (Indri indri) portrait, sitting in tree, tropical rainforest, Andasibe-Mantadia National Park, Eastern Madagascar. IUCN Endangered Species.

Alex Hyde / Diademed Sifakas (Propithecus diadema diadema) family group with baby in tropical rainforest. Andasibe-Mantadia National Park, Eastern Madagascar. IUCN Endangered Species.

Alex Hyde / Diademed Sifakas (Propithecus diadema diadema) family group with baby in tropical rainforest. Andasibe-Mantadia National Park, Eastern Madagascar. IUCN Endangered Species.

Inaki Relanzon / Eastern Grey Bamboo Lemur (Hapalemur griseus) feeding on bamboo shoot, Andasibe-Mantadia National Park, Madagascar, October