What sound do orangutans make when they're mad?

Answer 1

There is no specific scientific research on what sound they makee when mad . Animals like orangutans behaviour doesnt implay they are happy or sad or mad . They can create many sounds using thier hands and mouth whenever thier mood swings .

Answer 2

When orangutans are mad, they may make loud, guttural vocalizations such as grunts or roars. They may also drum on their chests or branches to display aggression.