The Bioko drill is a primate species native to the island of Bioko in Equatorial Guinea. It is a large monkey, known for its distinctive appearance, including a robust body and a striking face with bright blue and red coloration. The Bioko drill primarily inhabits tropical forests and is social, often found in groups. This species is closely related to the drill, which is found on the mainland of Africa. The Bioko drill is considered vulnerable due to habitat loss and hunting. Conservation efforts are underway to protect its natural habitat and ensure the survival of this unique primate.