Philippine tarsier (Tarsius syrichta)

Close up of a Philippine tarsier
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Philippine tarsier fact file

Philippine tarsier description

GenusTarsius (1)

The most notable feature of this extraordinary looking primate is its enormous eyes (2); tarsiers have the biggest eyes relative to their body weight of any mammal (4). As well as huge eyes, the Philippine tarsier has large, membranous ears set on its rounded head. It has short forelimbs, but greatly elongated hindlimbs, a feature which is reflected in this species name as tarsier refers to the elongated tarsal or ankle region (2). Its long digits culminate in rounded pads that provide the tarsier with effective grip on any surface. The fully opposable first toes also help the tarsier grip to slender branches (2). All the fingers and toes have flattened nails, except for the second and third toes which have claw-like nails used in grooming (2). The Philippine tarsier has wavy fur with a silky texture, ranging in colour on the upperparts from buff or greyish-brown to dark brown. The fur on the underparts is buff, greyish or slate (2). The tail is naked apart from a few short hairs on the tip, and is used as an extra support when clinging to an upright branch (2).

Tarsier Des Philippines.
Head-body length: 85 – 160 mm (2)
Tail length: 135 – 275 mm (2)
80 – 165 g (2)

Philippine tarsier biology

Philippine tarsiers are nocturnal animals that are also active at dusk and dawn (2). They spend the day sleeping in dense vegetation or occasionally in a hollow tree, and then as the sun sets, they begin their search for insect prey. Philippine tarsiers are agile acrobats of the forest, making vertical leaps from tree to tree with ease (2). Their head can rotate nearly 360°, and this, along with their enormous eyes, gives them an excellent field of vision (2). Once an insect is spotted, the Philippine tarsier will carefully adjust its position and focus, and then leap forward to seize the prey in both hands (2), their slender fingers creating a cage in which to hold flittering insects (4). During the hours the Philippine tarsier is awake, its thin ears are almost constantly being furled or crinkled (2).

Generally seen in pairs of a male and female, the Philippine tarsier gives birth to a single young. Incredibly, the well-developed young weigh 25 percent of the mother’s weight, a greater percentage than any other mammal (4). These large babies are well-furred, have their eyes open (2) (4), and are immediately capable of climbing and making short hops, although full leaps are not undertaken until one month of age. As the mother moves around the trees, the young will cling to her abdomen or be carried in her mouth. At 42 days of age, the young Philippine tarsier begins to capture its own insects, and shortly after this it is weaned. In captivity, a Philippine tarsier lived for just over 13 years (2).


Philippine tarsier range

Endemic to the Philippines, where it occurs on the islands of Samar, Leyte, Dinagat, Siargao, Bohol, Mindanao, Maripipi and Basilan (1) (2).


Philippine tarsier habitat

The Philippine tarsier preferentially inhabits secondary forest, scrub, and clearings with thick vegetation, although it also been found in primary forest and mangroves (2).


Philippine tarsier status

Classified as Near Threatened (NT) on the IUCN Red List (1), and listed on Appendix II of CITES (3).

IUCN Red List species status – Near Threatened


Philippine tarsier threats

Numbers of Philippine tarsiers are falling as their forest habitat is destroyed (5), and as they are hunted for food and for the pet trade (1).


Philippine tarsier conservation

The Philippine tarsier occurs in a number of protected areas (1), which are likely to mitigate the threat of habitat loss to the tarsier. It is also listed on Appendix II of the Convention on International Trade in Endangered Species (CITES), meaning that international trade in this species should be carefully monitored (3); however, the Philippine tarsier would undoubtedly benefit from further, tighter controls on hunting and trade (1).

View information on this species at the UNEP World Conservation Monitoring Centre.

Find out more

For further information on conservation of the Philippine Tarsier see:



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A species or taxonomic group that is only found in one particular country or geographic area.
Active at night.
Referring to a digit, (thumb or toe), that can be turned so that its pad makes contact with the pad of each of the other digits on the same limb.
Primary forest
Forest that has remained undisturbed for a long time and has reached a mature condition.
Secondary forest
Forest that has re-grown after a major disturbance, such as fire or timber harvest, but has not yet reached the mature state of primary forest.


  1. IUCN Red List (September, 2009)
  2. Nowak, R.M. (1991) Walkers Mammals of the World. Fifth Edition. The Johns Hopkins University Press, Baltimore and London.
  3. CITES (April, 2007)
  4. Niemitz, C. (2006) Tarsiers. In: Macdonald, D.W. (Ed) The Encyclopedia of Mammals. Oxford University Press, Oxford.
  5. Wolfheim, J.H. (1983) Primates of the World: Distribution, Abundance and Conservation. University of Washington Press, London.

Image credit

Close up of a Philippine tarsier  
Close up of a Philippine tarsier

© Pierre Fidenci / Endangered Species International

Endangered Species International
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San Francisco
United States of America


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