Siamang
Symphalangus syndactylus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderPrimates
- FamilyHylobatidae (Gibbons)
- GenusSymphalangus (Siamangs)
- SpeciesSymphalangus syndactylus (Siamang)
The siamang (, also UK: ; Symphalangus syndactylus) is an endangered arboreal, black-furred gibbon native to the tropical rainforests of Indonesia, Malaysia, and Thailand. The largest of the gibbons, the siamang can be twice the size of other gibbons, reaching 1 m (3.3 ft) in height, and weighing up to 14 kg (31 lb). It is the only species in the genus Symphalangus. Fossils of siamangs date back to the Middle Pleistocene. Two features distinguish the siamang from other gibbons. First, two digits on each foot—the second and third toes—are partially joined by a membrane, hence the specific name syndactylus, from the Ancient Greek σύν, sun-, "with" + δάκτυλος, daktulos, "finger". Wikipedia →
40–50% of wildlife watchers report a Siamang sighting in Kerinci Seblat National Park, based on 27 days of visitor records from GBIF citizen-science data.
Closest Relatives at Kerinci Seblat National Park
Agile Gibbon
Hylobates agilis
Sumatran Surili
Presbytis melalophos
Southern Pig-tailed Macaque
Macaca nemestrina
Silvered Leaf Monkey
Trachypithecus cristatus
Crab-eating Macaque
Macaca fascicularis
Sunda Slow Loris
Nycticebus coucang
Sumatran Orangutan
Pongo abelii
Bicolored Banded Langur
Presbytis bicolor
📅 Monthly Probability
🌅 When They're Spotted
Most active at dawn and dusk · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 2 | Kerinci Seblat National Park | 🇮🇩 Indonesia |
Quick answers
What are the chances of seeing a Siamang in Kerinci Seblat National Park?
About 43% of wildlife watchers report a Siamang sighting in Kerinci Seblat National Park, based on 27 days of visitor records from GBIF citizen-science data.
When is the best time to see Siamang in Kerinci Seblat National Park?
June has the highest sighting rate for Siamang in Kerinci Seblat National Park in our monthly data.