The alpha male of the black macaque group.

(Tangkoko National Park, North Sulawesi, Indonesia)

mammal; monkey; macaque; black macaque; Celebes crested macaque; Sulawesi crested macaque; Celebes black macaque; alpha male, Primate; Haplorrhini; Simiiformes; Catarrhini; Cercopithecidae; Macaca nigra; endemic; North Sulawesi; Tangkoko, South Pacific