Siamang

scientific name

Hylobates syndactylus

size/weight/height

Armspread. 4+"
Height. 29.5 -35"
Weight. 23 lbs.
largest gibbon

adaptations/coloration

Color. fur black • throat sac gray/pink
Arms: long arms
Posture: erect for brachiation
Rump: little callous-like pads for comfortable sitting (especially tree resting)

behavior

Group. family • close-knit • 3-4 offspring
Nest: none
Voice. very vocal • males scream • females bark • audible 1 mile
Territorial: song duet

reproduction/lifespan

Lifespan. 25-30 yrs
Mating. monogamous
Sexual Maturity. 7-8 yrs
Gestation. 7-8 mos.
Birth Interval. 2-3 yrs
Birth. 1 • leaves group 6 yrs
Parenting. male spends lots time • takes over daily care 1 yr.

diet

Wild. fruit, leaves & small invertebrates
Zoo. monkey chow, fruits & vegetables

habitat/range

rain/monsoon forest canopy • Malay Peninsula & Sumatra

status

US Endangered • CITES App I • due to habitat destruction • SSP • studbook participant • TAG

other

revered by forest people because of resemblance to humans

oregon zoo exhibit

Primates

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