Hylobates muelleri Closeup of Gray Gibbon Monkey Face Looking Around and at Camera by Pronghorn Productions in Ape , Mammal , Primate Full HD (1920x1080) – $29 HD (1280x720) – $19 Add to Cart Checkout Added to cart Closeup of Gray Gibbon Monkey Face Looking Around and at Camera $29 Gray Gibbon Monkey Primate Sitting Looking Around and at Camera by Pronghorn Productions in Ape , Mammal , Primate Full HD (1920x1080) – $29 HD (1280x720) – $19 Add to Cart Checkout Added to cart Gray Gibbon Monkey Primate Sitting Looking Around and at Camera $29