Sleeping Zanzibar red colobus monkey on branch, looking as if dead

monkey primate sleep branch red colobus endemic death motionless asleep dead tail nap jungle rainforest zanzibar old world monkey arboreal africa fur sleeping endangered simian animal tired colobus exhausted siesta rest piliocolobus tanzania unguja habitat tropical exotic tree long tail twig pierced impaled jozani forest still limbs rigor mortis