Researchers from the National University of Equatorial Guinea (UNGE) and Arcadia University have alerted the international conservation community to the threat of imminent extinction of the seven primate sub-species on the island of Bioko, Equatorial Guinea. These seven species include the drill, red colobus, black colobus, Preuss' guenon, crowned guenon, russeteared guenon and putty-nosed guenon. Similarly, researchers have pointed out the possibility of shortterm disappearance of the island's other large-bodied game animal, Ogilby's duiker.