Adult, Africa, Animal, Arboreal, Backlighting, Central Africa, Cercopithecidae, Color Photograph, Crested Mangabey, Day, Equatorial Africa, Full Length, Gabon, Gabon National Park, Gray-cheeked Mangabey, Horizontal, Least Concern, Looking, Looking at Camera, Lope National Park, Lophocebus albigena, Lophocebus albigena albigena, Lophocebus sp, Low Angle View, Mammal, Mangabey, Monkey, National Park, Nobody, Old World Monkey, One Animal, Outdoors, Primate, Side View, Western Gray-cheeked Mangabey, Wildlife