A Horsfield's Tarsier (Cephalopachus bancanus) on the prowl for food in the rainforest of western Borneo. These tiny primates are exclusively carnivorous, hunting insects, small lizards, and even snakes by leaping deftly through the thick forest understory and snatching prey with their long nimble fingers. Unlike most other nocturnal mammals which possess a reflective layer behind their retina to help with night vision, tarsiers instead compensate by having enormous eyes. In fact, this species sports the largest eyes in relation to its body size of any mammal in the world - these are locked in place and the animal is only able to shift its vision by rotating its head. Sarawak, Malaysia (Borneo).