Mandrill

Habitat: rainforest, gallery forest, and humid woodland

Native range: western central Africa

They feed on fruit, seeds, roots, insects, and small animals. The diet fits the principle because food is not just fuel here; it is the problem the animal's body has learned to solve efficiently.

They are diurnal, foraging in large social groups. That rhythm supports Dominant Color because timing decides when the animal spends energy, hides, feeds, or protects itself.

They may live 20 years or more in the wild, longer in care. The lifespan matters because the species' strategy is not a single trick but a pattern repeated across seasons.

Females typically produce one infant after a long pregnancy. The offspring notes fit the lesson because young begin life inside the same habitat pressures that shaped the adult strategy.

Males are much larger and far more brightly colored. Sex differences matter only where they change the visible strategy; otherwise the shared body plan carries the main lesson.

Mandrill most often symbolizes dominant color in AnimalDex because its real survival behavior repeatedly shows this pattern.

A face can become a flag when the body has something to declare.

Mandrills show bright facial and rump coloration, especially in dominant males, and use visual signals, canine display, and social hierarchy in group life.