a b c d e f g Hoshino, J. (1985). "Feeding ecology of mandrills ( Mandrillus sphinx) in Campo Animal Reserve, Cameroon". Primates. 26 (3): 248–273. doi: 10.1007/BF02382401. S2CID 12216632. Mandrills are noted for being among the most colorful mammals. Charles Darwin wrote in The Descent of Man: "no other member of the whole class of mammals is coloured in so extraordinary a manner as the adult male mandrill". [30] The red coloration is created by blood vessels near the surface of the skin, [31] while the blue is a form of structural coloration caused by parallel arrangements of collagen fibers. [32] The blue ridges on males contrast with both the red facial hues and the green foliage of their environment, helping them stand out to other individuals. [33] The darker and more subdued coloring of female faces is caused by melanin. [34] Ecology [ edit ] Female mandrill sitting in tree

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?

a b c Ankel-Simons, F. (2007). Primate Anatomy: An Introduction (3rded.). Elsevier Acad Press. p.128. ISBN 978-0-08-046911-9. And if we’re finding new species of primates, then who knows how many new species of small mammals or lizards or insects, just to name a few, might be out there. There’s certainly a lot of undiscovered biodiversity in this region.” Mandrills are large primates closely related to the baboon. These animals inhabit the tropical forests of Africa and are monkeys with blue butts. Additionally, the mandrill is the largest non-ape primate. It is arguably the most colorful, with a trademark bright red and blue face and a very bright and colorful butt. These are secondary sexual characteristics, present in both sexes but much more vibrant in males. Scientists believe that they use this feature to attract mates and intimidate rivals.

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 You can think of a photon as a drunk person walking through a forest. The drunk person enters the forest and walks into a tree, D’oh!, changes direction (scatters) and walks another short distance and into another tree, D’oh! D’oh! D’oh! D’oh! …. and before you know it the drunk person exits the forest in a random place going a random direction.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. Darwin, Charles (1871). The Descent of Man, and Selection in Relation to Sex. John Murray. p. 292. OCLC 39301709. The different colors of the primate’s butt come from the arrangement of the tissue in the area, reflecting specific light wavelengths. Therefore, mandrills have blue butts, while other monkeys have pink, red, or bright blue bottoms because of tumescence, which occurs due to the hormones produced during ovulation. 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!

At least three other anthropoid primates are exclusive to the region, according to the researchers—the Lomami River red colobus, the Lomami River blue monkey, and the Kasuku River Wolf’s monkey. Like all of Congo’s remaining large mammals, these species are threatened by uncontrolled commercial bush meat hunting and habitat loss. Red bottoms in female monkeys signal to the males that they are ready to mate. In some species of monkeys, such as the mandrill, males have colorful butts that indicate their social status. Why are baboon’s butt red? The Lesula is known to live exclusively within only 17,000 square kilometers of mature evergreen forests in DRC’s eastern central basin, between the middle Lomami and upper Tshuapa rivers. Unlike many monkeys with blue butts, monkeys with red butts are mostly females. Also, monkeys with red butts are relatively common like monkeys with blue butts. But, again, the reason seems closely tied to mating. Females use their red butts to signal males when they’re in heat and ready to mate. So let’s look at the red-butt vs blue-butt monkeys. Red-Butt Baboons Male baboons have red butts that primatologists believe help to attract females and warn off predators. Mandrills mainly live in tropical rainforests but will also travel across savannas. They are active during the day and spend most of their time on the ground. Their preferred foods are fruit and seeds, but mandrills will consume leaves, piths, mushrooms, and animals from insects to juvenile antelope. Mandrills live in large, stable groups known as "hordes" which can number in the hundreds. Females form the core of these groups, while adult males are solitary and only reunite with the larger groups during the breeding season. Dominant males have the most vibrant colors and fattest flanks and rumps, and have the most success siring young.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? Monkeys, like many primates, use sexual swellings to indicate fertility. The increased hormonal activity around the genitals during ovulation causes the skin to turn pink, a phenomenon known as tumescence. The Science Behind The Monkey Butt Vibrant Coloration? This is an engagingly cheeky picture book, which will make young children laugh out loud, as soon as they spot the cover. In fact The Monkey with a Bright Blue Bottom by Steve Smallman is a pourquoi story like the famous “Just So Stories”, by Rudyard Kipling, but with a difference: Schino, G.; De Angelis, F. (2020). "Conflict over grooming topography between mandrill groomers and groomees". Behavioural Processes. 180: 104240. doi: 10.1016/j.beproc.2020.104240. PMID 32905823. S2CID 221501684.