Joel Sartore. Grey-Tailed Moustached Monkeys.
Grey-tailed moustached monkeys (Cercopithecus cephus cephodes) named Arlo and Blue at the wildlife rehab enter of ONG Animals World in Libreville, Gabon. This is a home for many animals that are babies, injured, or are confiscated by the government.
Joel Sartore is an American photographer focusing on conservation, speaker, author, teacher, and long-time contributor to National Geographic magazine. He is the head of The Photo Ark, a 25-year project to document the approximately 12,000 species living in the world's zoos and wildlife sanctuaries.
Follow Joel on instagram @joelsartore.