Nocturnal tree-climbing prosimian Daubentonia madagascariensis of Madagascar, related to the lemurs. It is just over 1 m/3 ft long, including a tail 50 cm/20 in long. It has an exceptionally long middle finger with which it probes for insects and their larvae under the bark of trees, and gnawing, rodent-like front teeth, with which it tears off the bark to get at its prey. The aye-aye has become rare through loss of its forest habitat, and is now classified as an endangered species. Subject by: Russell Webb