- Their huge noses are a sign of male fitness and when they call the sound is resonated through the nose.
- Found only on the island of Borneo.
- They have webbed toes, an adaptation that enables them to swim long distances.
- Called the ‘Dutch monkey’ in local language due to their large nose and pot belly.
- They have stomachs a bit like cows, regurgitating their food only to swallow it back down for a second digestion.