All gibbons make incredible sounds, but the siamang's call is legendary. They can be heard up to 2 miles away. Their calls are made louder by an inflatable throat sac.
I've tried looking this up with no avail. What makes the low-pitched noise between the high notes? Is that an inhale? And are the high notes the exhales?
I've tried looking this up with no avail. What makes the low-pitched noise between the high notes? Is that an inhale? And are the high notes the exhales?
