The Horrific Sound Of The Howler Monkey Will Give You Nightmares

Roger Anderson was filming his journey through the jungle when a noise startled him and his companions. The gnarly sounding noise that Roger caught on film seems like it belongs in a horror flick!

The horrific noise was coming from the vocal cords of a Howler Monkey!

The creepiest part of the video is the fact that Roger never did actually see the monkey.