Siamang

Symphalangus syndactylus

RANGE Island of Sumatra and the Malay Peninsula

HABITAT Forests

DIET Mainly leaves, fruit, and flowers

Male and female pairs will sing "duets" to one another, and each pair creates a unique song all their own!

These apes’ booms and barks are amplified by an inflatable throat sac. The throat sac can be as large as a grapefruit. Their legendary calls can be heard up to 2 miles away through the forest.

Their arm length may reach 2.5 times the length of the body.

Siamangs are unique among the gibbon family because males typically become the primary caregiver for infants during their second year of life.

The main threat to this species is loss of habitat due to logging and agriculture.