Head and body length: 12.2 - 15.4 cm, Tail: 18.1 - 22.4 cm
86 - 135 g
Typically found in primary and secondary forests of hilly lowlands and swampy plains
Its eyes are matched by its appetite. The western tarsier has huge eyes- a single eyeball is larger than its brain- and consumes a prodigious one-tenth of its body weight each night. The nocturnal hunter uses sound to locate large insects, arachnids or small animals and then pounces. Highly adapted for leaping, it is capable of covering a distance equal to some 40 times its own head and body length in a single bound. It can also turn its head 180 degrees, like an owl. But there is danger no matter which way it turns, as the forest falls due to logging and conversion to oil palm plantations.