What Makes Siamangs Different From Other Gibbons?

💡 The Answer

• Siamangs are the largest of the gibbons, weighing up to 14 kg (31 lbs).
• Unlike other gibbons, they have a dark black coat with no white bands on face.
• Their throat sac is unique among gibbons for its size and resonance.
• They also have longer arms relative to body size than other gibbons.