The mandrill, a striking primate found in the rainforests of west-central Africa, captivates with its vibrant coloration and robust build. This article explores the mandrill’s physical dimensions, comparing its size to human beings.
Mandrill Physical Characteristics
Mandrills exhibit pronounced sexual dimorphism, meaning males and females differ significantly in size. Adult male mandrills are considerably larger than females, often weighing two to three times more. Males typically weigh between 70 to 119 pounds (32 to 54 kg). Their standing height averages around 32 inches (81 cm), though their head-body length can range from 28 to 37 inches (70 to 95 cm).
Female mandrills are much smaller, weighing approximately 25 to 33 pounds (11 to 15 kg). Their average standing height is about 22 inches (55 to 67 cm), with a head-body length ranging from 22 to 28 inches (55 to 70 cm). Both sexes possess a stocky body, a large head with a prominent muzzle, and a short, stubby tail measuring 2 to 4 inches (5 to 10 cm). Their body is strong and compact, supported by long arms and an overall muscular physique.
Direct Comparison to Human Size
When comparing mandrill size to average human dimensions, the differences become quite apparent. An average adult male human in the United States stands around 5 feet 9 inches (177.8 cm) tall and weighs approximately 199 pounds (89.8 kg). In contrast, a male mandrill, standing at about 32 inches (81 cm), is considerably shorter. While a 119-pound (54 kg) male mandrill is significantly lighter than the average human male, large individuals can approach the weight of a smaller adult human.
Female mandrills, at an average height of 22 inches (56 cm) and weight of 25 to 33 pounds (11 to 15 kg), are much smaller than the average female human, who stands around 5 feet 4 inches (162.6 cm) and weighs about 171.8 pounds (77.1 kg). Despite their relatively smaller stature compared to humans, mandrills possess disproportionate strength due to their dense musculature and compact build.
Other Unique Physical Features
Beyond their size, mandrills possess several other distinct physical features that differentiate them from humans. Male mandrills are renowned for their vivid facial coloration, featuring a red stripe running down the middle of the face, bright red lips and nose, and thick blue ridges along the nose. These striking colors are not due to pigment, but rather structural coloration from microscopic collagen fibers in the skin, which reflect blue light. The intensity of these colors, particularly the reds, is linked to higher testosterone levels and indicates a male’s dominance and attractiveness to females.
Mandrills also possess long canine teeth, which are particularly prominent in males. Male canines can reach up to 2.5 inches (5 cm) in length, serving purposes such as self-defense and intimidation. This contrasts with female canines, which are much shorter, around 0.4 inches (1 cm). Their olive-brown coats, yellow-orange beards, and a dark brown crest on the crown of their head add to their unique look. The bare rump of male mandrills also displays vibrant red, blue, or purple coloration, which supports sitting and enhances visibility within dense forest environments.