a b Yorzinski, J. L.; Vehrencamp, S. L. (2008). "Preliminary report: antipredator behaviors of mandrills" (PDF). Primate Report. 75: 11–18. Experts suggest that a female rhesus macaque might have a greater chance of finding a mating partner when her butt is swollen and red. Celebes Crested Macaques

Monkey with a Bright Blue Bottom - Page 2 - Childminding Help The Monkey with a Bright Blue Bottom - Page 2 - Childminding Help

As an example, if one monkey makes the leopard call, all the other monkeys learn of a specific threat. Yet the monkeys can respond to that threat based on their knowledge of the caller.The species was listed among the Top 10 New Species 2013 discovered in 2012 as selected by the International Institute for Species Exploration at Arizona State University out of more than 140 nominated species. Its distinctiveness is its human-like eyes, genital area and booming dawn chorus. The selection was declared on 22 May 2013. [6] [7] Distribution [ edit ] Lesula booms As of 2019, the IUCN Red List lists the mandrill as vulnerable. Its total population is unknown but is suspected to have decreased by more than 30 percent over the last 24 years. Its main threats are habitat destruction and hunting for bushmeat. [1] The mandrill appears to have suffered massive habitat loss in Equatorial Guinea and southern Cameroon, while its range in the Republic of the Congo is limited and its status is unknown. [79] In addition, while mandrills live in groups numbering in the hundreds, hunting in Cameroon and Equatorial Guinea appears to have led to smaller group sizes. [1] Gabon is seen as the most important remaining refuge for the species, and the country's low population density and vast rainforests make it a good candidate for mandrill conservation. Surveys have shown high population numbers for other primate species like chimpanzees and gorillas. A semi-wild population exists at the International Centre of Medical Research of Franceville. [80]

Monkey with a Bright Blue Bottom - jungle, jungle animals The Monkey with a Bright Blue Bottom - jungle, jungle animals

To understand how photons move through a complex tissue like skin, lets compare a red photon with a blue photon as it hits two tissue layers. Tissue “A” is on top, and Tissue “B” is underneath. If layers A and B were both white (like milk), they would reflect red and blue photons equally and you would see both colors. 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] 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]

All these vocalisations are incredible because vervet monkeys can respond to both the call and the caller. In essence they have invented their own language. Think of it from a human perspective. How do you react when you hear somebody shout for help? And how is it different if you hear your spouse or child shout for help? Mothers love to care for babies. In fact, vervet monkey females are so eager to mother that they have reportedly stolen babies from other troops. Search for vervet monkeys online and one of the top hits concerns how much does a vervet monkey cost! Apparently you can buy one for around a thousand dollars! Most vervet monkeys spend their first year in the care of their mother and females who have not reached sexual maturity. But some mothers leave the troop and never return, so the infants are cared for by aunts, grandmothers or cousins! An incredible range of vocalisations