Before visiting the warugas we stayed a couple of days near the Tangkoko National Park in northern Sulawesi. Here one can see prosimian primates of the speciesTarsius spectrum (Spectral Tarsier). They are nocturnal and therefore have large eyes and ears. The eyes cannot move but they can turn their heads 180 degrees. Adults reach a weight between 110 and 125 grams.
Tarsiers live in groups of 2 to 6 individuals and they sleep in a hollow tree which they return to every day. Roughly 20 minutes after sunset they come out and begin their hunt for insects but not more than 9 m above ground. They are vertical clingers and leap around 1.4 m. Their main enemy are feral cats but the tarsiers apparently have a bad taste.