Chien Lee / Spectral Tarsier (Tarsius tarsier), Tangkoko Nature Reserve, Sulawesi, Indonesia

Solvin Zankl / Spectral tarsier {Tarsius tarsier / spectrum / fuscus} catching insect, Tangkoko Rainforest, Sulawesi Indonesia

Anup Shah / Spectral tarsier (Tarsius tarsier / spectrum / fuscus) native to Sulawesi, Indonesia, captive

Barrie Britton / Spectral tarsier eating lizard {Tarsius tarsier / spectrum} captive, Indonesia

Chien Lee / Spectral Tarsier (Tarsius tarsier), Tangkoko Nature Reserve, Sulawesi, Indonesia

Chien Lee / Spectral Tarsier (Tarsius tarsier) climbing tree at night, Tangkoko Nature Reserve, Sulawesi, Indonesia

Thomas Marent / Spectral Tarsier (Tarsius tarsier), Tangkoko Nature Reserve, northern Sulawesi, Indonesia

Thomas Marent / Spectral Tarsier (Tarsius tarsier), Tangkoko Nature Reserve, northern Sulawesi, Indonesia

Thomas Marent / Spectral Tarsier (Tarsius tarsier), Tangkoko Nature Reserve, northern Sulawesi, Indonesia

Constantinos Petrinos / Two Spectral tarsiers {Tarsius tarsier / spectrum / fuscus} looking down from tree, North Sulawesi, Indonesia, Vulnerable species

Thomas Marent / Spectral Tarsier (Tarsius tarsier), Tangkoko Nature Reserve, Sulawesi, Indonesia

Thomas Marent / Spectral Tarsier (Tarsius tarsier) juvenile, Tangkoko Nature Reserve, Sulawesi, Indonesia

Thomas Marent / Spectral Tarsier (Tarsius tarsier) juvenile, Tangkoko Nature Reserve, Sulawesi, Indonesia

Juergen Freund / Spectral tarsier {Tarsius tarsier / spectrum} smallest primate, South America

Juergen Freund / Spectral tarsier {Tarsius tarsier / spectrum / fuscus} Sulawesi, Indonesia world's smallest primate endemic

Constantinos Petrinos / Spectral tarsier {Tarsius tarsier / spectrum / fuscus} looking down from tree, North Sulawesi, Indonesia, Vulnerable species

Michael & Patricia Fogden / Spectral Tarsier (Tarsius tarsier) in the rainforest, Tangkoko-Dua Saudara Nature Reserve, Sulawesi, Indonesia

Michael & Patricia Fogden / Spectral Tarsier (Tarsius tarsier) in the rainforest, Tangkoko-Dua Saudara Nature Reserve, Sulawesi, Indonesia

Michael & Patricia Fogden / Spectral Tarsier (Tarsius tarsier) in the rainforest, Tangkoko-Dua Saudara Nature Reserve, Sulawesi, Indonesia

Solvin Zankl / Spectral tarsier {Tarsius tarsier / spectrum / fuscus} Sulawesi, Indonesia

Solvin Zankl / Spectral tarsier portrait {Tarsius tarsier / spectrum / fuscus} Sulawesi, Indonesia

Solvin Zankl / Spectral tarsier {Tarsius tarsier / spectrum / fuscus} Sulawesi, Indonesia

Solvin Zankl / Spectral tarsier {Tarsius tarsier / spectrum / fuscus} Sulawesi, Indonesia

JIM CLARE / Spectral tarsiers (Tarsius tarsier / spectrum / fuscus) Tangkoko NP, Sulawesi, Indonesia

Juergen Freund / Spectral tarsier (Tarsius tarsier / spectrum / fuscus). Sulawesi, Indonesia

Constantinos Petrinos / Spectral tarsier {Tarsius tarsier / spectrum / fuscus} portrait, North Sulawesi, Indonesia

Barrie Britton / Spectral tarsier (Tarsius tarsier / spectrum) clinging to small branch feeding on lizard, captive, Indonesia, Vulnerable species

JIM CLARE / Spectral tarsier {Tarsius tarsier / spectrum / fuscus} Tangkoko NP, Sulawesi, Indonesia.

Constantinos Petrinos / Spectral tarsier pair {Tarsius spectrum} North Sulawesi Indonesia

Barrie Britton / Spectral tarsier eating lizard {Tarsius spectrum} captive Indonesia