Tarsiers are very small primates. Extant tarsiers are restricted to several Southeast Asian islands including the Philippines, Sulawesi, Borneo, and Sumatra. All tarsier species are nocturnal in their habits. They are primarily insectivorous, and catch insects by jumping at them. They are also known to prey on small vertebrates, such as birds, snakes, lizards, and bats. As they jump from tree to tree, tarsiers can catch even birds in motion. Look at these cute animals.