Mandrills are most closely related to and share a habitat with drills Mandrillus leucophaeus. Drills are one of the most critically endangered primates in Africa. Conservation organizations are working to protect mandrill habitat from illegal logging and the bushmeat trade; bushmeat is the hunting of wildlife species for food and trade. The illegal bushmeat trade is the most critical threat to both drills and mandrills. By protecting habitat, populations of both these species can be saved.