📸 PhotoPhoto: J. Patrick Fischer · CC BY-SA 4.0 · Wikimedia Commons Source
Siamang
Symphalangus syndactylus (Siamang · フクロテナガザル)
💡 Everyday Comparisons for Size, Mass & Speed
- 💡 Its maximum weight of 12 kg is slightly more than half of a 20 kg bag of rice (Comparison).
- 💡 The Smithsonian's National Zoo notes that its throat sac swells to the size of a grapefruit when inflated.
- 💡 At the Smithsonian's National Zoo, it is fed kale, cabbage, carrots, apples, bananas, sweet potatoes, and primate chow multiple times a day.
Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.
Site-computed relative index from recorded values; not a formal scientific metric.
📖 1. Overview
The Siamang is the largest of all gibbons, living high in the rainforest trees of the Malay Peninsula and Sumatra.
🦴 2. Anatomy & Morphology
Covered in thick black fur, it has long, slender arms that reach 2.3–2.6 times the length of its body. Its throat bears an inflatable sac that amplifies its calls and swells to the size of a grapefruit.
🔍 3. Ecology & Behavior
It feeds mainly on leaves and fruit, along with small amounts of insects, bird eggs, and small vertebrates. Males and females sing duets to advertise their territory, and mated pairs stay together for a long time.
🇰🇷 4. Connection to Korea
No direct record connecting this species to Korea has been found.
📚 Sources & References
- • IUCN Red List EN (2020) — https://www.iucnredlist.org/species/39779/17967873
- • IUCN Red List category EN — latest assessment at iucnredlist.org
- • mammaldiversity.org — 1000743
- • iucnredlist.org — 17967873
- • wikidata.org — Q213889
- • commons.wikimedia.org — File:Siamang 2014.jpg
- • animaldiversity.org — Symphalangus syndactylus
- • nationalzoo.si.edu — siamang
- • Silhouette: PhyloPic — Cliff · CC BY 4.0
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.