Bernard Castelein / Coquerel's sifaka (Propithecus coquereli) in tree, relaxing, Ankarafantsika National Park, Madagascar

Suzi Eszterhas / Coquerel's Sifaka (Propithecus coquereli) mother with three month old young, Madagascar

Andy Rouse / Coquerel's Sifaka (Propithecus coquereli) jumping, Palmarium Reserve, Madagascar

Andy Rouse / Coquerel's Sifaka (Propithecus coquereli) jumping, Palmarium Reserve, Madagascar

Andy Rouse / Coquerel's Sifaka (Propithecus coquereli) climbing tree, Palmarium Reserve, Madagascar

Andy Rouse / Coquerel's Sifaka (Propithecus coquereli) jumping, Palmarium Reserve, Madagascar

Andy Rouse / Coquerel's Sifakas (Propithecus coquereli) in coastal rainforest, Palmarium Reserve, Madagascar

Thomas Marent / Coquerel's Sifaka (Propithecus coquereli) trio in trees, Ankarafantsika National Park, Madagascar

Pete Oxford / Coquerel's Sifaka (Propithecus coquereli) mother and baby, Ankarafantsika Strict Nature Reserve, western Deciduous forest, Madagascar

Pete Oxford / Coquerel's Sifaka (Propithecus coquereli) in western deciduous forest, Ankarafantsika Strict Nature Reserve, Madagascar

John Downer Productions / Coquerel's sifaka lemurs pogo across the for (Resolution restriction - image digitised from film, 'Weird Nature' tv series)

Pete Oxford / Coquerel's sifaka calling in tree. Madagascar, Ankarafantsika Reserve