Some authorities have divided mandrill populations into subspecies: the northern mandrill ( M. s. sphinx) and the southern mandrill ( M. s. madarogaster). A proposed third subspecies, M. s. insularis, was based on the mistaken belief that mandrills are present on Bioko Island. [14] [15] The consensus is that mandrills belong to one subspecies ( M. s. sphinx). [16]

Major discoveries like this are still possible, mainly thanks to dedicated field biologists like the Harts,” says Eric Sargis, professor of anthropology at Yale and a co-author of the paper. Red butts in monkeys and other primates serve various purposes, including indicating fertility and social status. It’s fascinating that some monkeys have more vibrant and colorful butts than others. While some, like the mandrills, have multicolored bums, others, like the Celebes crested macaque, have outrageously swollen and bright red butts. a b Finstermeier, K.; Zinner, D.; Brameier, M.; Meyer, M.; Kreuz, E.; etal. (2011). "A mitogenomic phylogeny of living primates". PLOS ONE. 8 (7): e69504. doi: 10.1371/journal.pone.0069504. PMC 3713065. PMID 23874967.Mandrills live in large "supergroups" or "hordes" that can contain hundreds of individuals. [40] [50] [51] These large groups are fairly stable and do not appear to be gatherings of smaller ones. At Lopé National Park, Gabon, mandrill hordes were found to have an average of 620 individuals, and some groups were as large as 845, making them possibly the largest cohesive groups of wild primates. [51] Another study in Lopé found that a horde of 625 mandrills consisted of 21 dominant males, 71 less dominant and subadult males, 247 adult and adolescent females, 200 juveniles, and 86 dependent infants. [40] A mandrill horde of around 700 individuals in northern Lopé had a total home range of 182km 2 (70sqmi), 89km 2 (34sqmi) of which was suitable habitat. The supergroup would occasionally diverge into two to four subgroups before reuniting. [52] Another 15-month long study of a 120 member group found a home range of 8.6km 2 (3.3sqmi) with an average traveling distance of 2.42km (1.50mi) per day. [47] Mandrills grooming at Natura Artis Magistra The structure of the mandrill’s butt tissue reflects blue photons and absorbs other colors, making the blue color more visible. What monkey has a pink bum? In the picture above, both the red and blue photons bounce (scatter) 4 times while they are penetrating the skin. But because the red photons travel a longer distance in between scattering events, they manage to penetrate both layers of skin. The melanin in Tissue B absorbs the red photon so it can’t leave the skin and reach your eye. Baboons and other primates use sexual swellings, including red-colored ones, to communicate fertility. Female baboons’ butts swell and turn red during ovulation, but not all males are interested in mating during this time. Is Baboon Classified as a red-butt Monkey or an Ape?

After their first coincidental encounter with the captive Lesula, the Harts and their research team observed it in the wild, documented its behavior and ecology, and ultimately determined its distinctiveness through genetic and anatomical studies. The vibrant coloration of monkey butt has intrigued scientists for decades. These bright hues are not just visually striking but serve essential functions.

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Setchell, J. M. (2005). "Do female mandrills prefer brightly colored males?" (PDF). International Journal of Primatology. 26 (4): 715–735. doi: 10.1007/s10764-005-5305-7. S2CID 3082991.

So, there you have it – in the blue butt monkey vs red butt monkey scenario, you decide on the winner. If there is a winner in this comparison, that is! Next Up – More Monkey-Related Blogs Pourquoi” tales are, of course, intended to explain the origins of real life animals. This story has, very neatly, chosen to include both familiar, and unfamiliar, animals. Children will very probably already know that zebras have stripes, and giraffes a sort of square pattern, but will they have heard of a spectacled bear? Or our hero, the mandrill monkey, with his red and blue face? Hordes consist of matrilineal family groups, and females are important for maintaining social cohesion. Strong connections with their relatives may lead to support during conflicts, higher survival rate of offspring and a longer lifespan for females. Dominant females are at the center of the group network and their removal leads to fewer social connections in the group. [53] The social rank of a mother mandrill can contribute to the social rank of both her female and male offspring. [54] Mature males are not permanent members of hordes but join as females become sexually receptive and leave as their sexual cycle ends. As a result, the coloration of the male mandrill may be intended to attract attention in a social structure with no long-term relationships between mates. [51] Higher ranking males are found in the center of a social group while lower ranking males are more likely to occupy the periphery. [55] Females have some control over the males and coalitions can expel an unwanted male from a group. [56] Outside the breeding season, males are believed to lead a solitary life and all-male bachelor groups are not known to exist. [51] Scientists have also discovered that various factors, including genetics, diet, and overall health, influence these colors’ vibrancy. Some studies have shown that males with brighter and more colorful bottoms tend to have better immune systems and higher testosterone levels, making them more attractive to females. Red Butt Monkey: EndSo the bear grabs the paintbrush, and the box of colours, and proceeds to paint the bum cheeks of the cheeky monkey “as bright as a blue summer sky” (that’ll teach him!) and furthermore goes on to paint the monkey’s face for good measure. Now the crestfallen monkey looks just like a clown, with his red white and blue face (and bright blue bottom) - and to cap it all, all the other animals giggle to themselves whenever he passes by. Pourquoi stories” are ones which give explanations for the origins of animals, and also some of their characteristics. They are present in many different cultures, and are often now told to entertain. This one fits the bill perfectly. Just why is it that some monkeys have startlingly coloured faces - and rear ends? This book offers an explanation why. A baboon’s butt tissue is arranged somewhat like the illustration above so that blue photons are reflected and all of the other photons (like the red ones) are absorbed. Only the blue light makes it out and gets into our eyes. This is why we see we see blue monkey butts! This is not intended to be a full statement of all your rights under the Distance Selling Regulations. Full details of your rights under the Distance Selling Regulations are available in the UK from your local Citizens' Advice Bureau or your Local Authority's Trading Standards Office.

To start viewing posts, select the forum that you wish to visit from the selection below. Guests can only see limited areas. To view the whole Forum and member areas you must register first. It is well worth joining us, there is so much more once inside.The mandrill lives in west-central Africa, including southern Cameroon, mainland Equatorial Guinea ( Río Muni), Gabon and parts of the Republic of the Congo. Its range is bounded by the Sanaga River to the north and the Ogooué and Ivindo Rivers to the east. It does not appear to share habitat with the drill, as the two species are separated by the Sanaga River. [35] Mandrills live in tropical rainforests, generally preferring primary forests over secondary forests. They also live in patchy gallery forests surrounded by savanna and travel across grass areas within their forest habitats. [36] They have also been recorded in mountainous areas, near rivers and in cultivated fields. [37] Plinkety-plonk! Tweetily-tweet! The jungle animals are making music to the sound of the bubbling creek! But – goodness me! – what is that naughty hippo up to? A bonkers, musical rhyming story with a laugh-out-loud, farting surprise! The mandrill ( Mandrillus sphinx) is a large Old World monkey native to west central Africa. It is one of the most colorful mammals in the world, with red and blue skin on its face and posterior. The species is sexually dimorphic, as males have a larger body, longer canine teeth and brighter coloring. It is the largest monkey in the world. Its closest living relative is the drill, with which it shares the genus Mandrillus. Both species were traditionally thought to be baboons, but further evidence has shown that they are more closely related to white-eyelid mangabeys.