Siamangs are a type of gibbon that can be found in the forests of Southeast Asia. They are also known as the "black-furred gibbon" due to their distinctive fur color. If you're looking for other words to describe these primates, you could use "symphalangus syndactylus," which is their scientific name. You could also refer to them as "forest apes" or "tree-dwelling primates." Other synonyms include "hoolock gibbons," which are a similar species, and "lesser apes," which distinguishes them from their larger cousins, the great apes. Regardless of what you call them, siamangs are fascinating creatures with unique adaptations that enable them to thrive in their native habitats.