Did you know?
The siamang sings very loudly in the morning, being heard up to three miles away. It is the only primate to walk erect on two legs (besides humans).
Rainforests and deciduous forests in Sumatra in Asia
29-35 inches with arms 2.5 times the length of the body
25-30 years in the wild
Leaves, fruit, insects, birds and small vertebrates
Typically 1 young after a 7 month gestation
Illegal pet trade and habitat loss