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Sexual Swelling
Sexual swelling, sexual skin, or anogenital tumescence refers to localized engorgement of the anus and vulva region of some female primates that vary in size over the course of the menstrual cycle. Thought to be an honest signal of fertility, male primates are attracted to these swellings; preferring, and competing for, females with the largest swellings. Sexual swelling is widespread among primates but completely absent in humans and vervet monkeys. Females of these species exhibit concealed ovulation. Though heavily investigated, the ultimate function of sexual swellings remains unknown. Over the last 50 years, eight principal explanations have been proposed, each claiming to account for the function of exaggerated swellings. Alone, however, no single hypothesis is believed to account for the function of sexual swellings; a combination of these theories may be more appropriate. In line with this ideal, the most recent account regarding the function of sexual swellings (the gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Swelling In Female Hamadryas Baboon
Sex is the trait that determines whether a sexually reproducing organism produces male or female gametes. Sex, SEX or sexual may also refer to: *Sexual intercourse, a sexual activity Arts and entertainment Film and television * ''Sex'' (1920 film), an American silent drama * ''Sex'' (2024 film), a Norwegian drama * ''Sex'' (TV series), an Australian series * "Sex", a 1997 TV episode of ''Brass Eye'' * "Sex", an episode of ''Kath & Kim'', 2002 * '' Sex: The Annabel Chong Story'', a 1999 documentary film Literature * ''Sex'' (book), by Madonna and Steven Meisel, 1992 * ''Sex'' (manga), a Japanese manga series by Atsushi Kamijo * ''Sex'' (play), by Mae West, 1926 *''Sexes'', an MDPI academic journal Music *SEX, pseudonym of American rapper Young Thug Albums * ''Sex'' (Elli Kokkinou album), 2005 * ''Sex'' (Telex album), 1981 * ''Sex'' (The Necks album), 1989 * ''Sex'' (The 1975 EP), 2012 * ''Sex'' (Tila Tequila EP), 2007 * ''Sex'' (Vintage album), 2009 Songs * "Sex" (The 197 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perineum
The perineum (: perineums or perinea) in placentalia, placental mammals is the space between the anus and the genitals. The human perineum is between the anus and scrotum in the male or between the anus and vulva in the female. The perineum is the region of the body between the pubic symphysis (pubic arch) and the coccyx (tail bone), including the perineal body and surrounding structures. The perineal raphe is visible and pronounced to varying degrees. Etymology The word entered English from late Latin via Greek language, Greek περίναιος ~ περίνεος ''perinaios, perineos'', itself from περίνεος, περίνεοι 'male genitals' and earlier περίς ''perís'' 'penis' through influence from πηρίς ''pērís'' 'scrotum'. The term was originally understood as a purely male body-part with the perineal raphe seen as a continuation of the scrotal septum since Virilization, masculinization causes the development of a large anogenital distance in men, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colobinae
The Colobinae or leaf-eating monkeys are a family (biology), subfamily of the Old World monkey family that includes 61 species in 11 genus, genera, including the black-and-white colobus, the large-nosed proboscis monkey, and the gray langurs. Some classifications split the colobine monkeys into two tribes, while others split them into three groups. Both classifications put the three African genera ''Black-and-white colobus, Colobus'', ''Red colobus, Piliocolobus'', and ''Olive colobus, Procolobus'' in one group; these genera are distinct in that they have stub thumbs (Greek κολοβός ''kolobós'' = "docked"). The various Asian genera are placed into another one or two groups. Analysis of Mitochondrial DNA, mtDNA confirms the Asian species form two distinct groups, one of langurs and the other of the "odd-nosed" species, but are inconsistent as to the relationships of the gray langurs; some studies suggest that the gray langurs are not closely related to either of these groups ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macaque
The macaques () constitute a genus (''Macaca'') of gregarious Old World monkeys of the subfamily Cercopithecinae. The 23 species of macaques inhabit ranges throughout Asia, North Africa, and Europe (in Gibraltar). Macaques are principally frugivorous (preferring fruit), although their diet also includes seeds, leaves, flowers, and tree bark. Some species such as the long-tailed macaque (''M. fascicularis''; also called the crab-eating macaque) will supplement their diets with small amounts of meat from shellfish, insects, and small mammals. On average, a southern pig-tailed macaque (''M. nemestrina'') in Malaysia eats about 70 large rats each year. All macaque social groups are arranged around dominant matriarchs. Macaques are found in a variety of habitats throughout the Asian continent and are highly adaptable. Certain species are synanthropic, having learned to live alongside humans, but they have become problematic in urban areas in Southeast Asia and are not suitabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pan (genus)
The genus ''Pan'' consists of two extant species: the chimpanzee and the bonobo. Taxonomically, these two ape species are collectively termed panins; however, both species are more commonly referred to collectively using the generalized term chimpanzees, or chimps. Together with humans, gorillas, and orangutans, they are part of the family Hominidae (the great apes, or ''hominids''). Native to sub-Saharan Africa, chimpanzees and bonobos are currently both found in the Congo jungle, while only the chimpanzee is also found further north in West Africa. Both species are listed as endangered species, endangered on the IUCN Red List of Threatened Species, and in 2017 the Convention on Migratory Species selected the chimpanzee for special protection. Chimpanzee and bonobo: comparison The chimpanzee (''P. troglodytes''), which lives north of the Congo River, and the bonobo (''P. paniscus''), which lives south of it, were once considered to be the same species, but since 1928 they h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papio
Baboons are primates comprising the genus ''Papio'', one of the 23 genera of Old World monkeys, in the family Cercopithecidae. There are six species of baboon: the hamadryas baboon, the Guinea baboon, the olive baboon, the yellow baboon, the Kinda baboon and the chacma baboon. Each species is native to one of six areas of Africa and the hamadryas baboon is also native to part of the Arabian Peninsula. Baboons are among the largest non- hominoid primates and have existed for at least two million years. Baboons vary in size and weight depending on the species. The smallest, the Kinda baboon, is in length and weighs only , while the largest, the chacma baboon, is up to in length and weighs . All baboons have long, dog-like muzzles, heavy, powerful jaws with sharp canine teeth, close-set eyes, thick fur except on their muzzles, short tails, and nerveless, hairless pads of skin on their protruding buttocks called ischial callosities that provide for sitting comfort. Male hamad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gelada
The gelada (''Theropithecus gelada'', , ), sometimes called the bleeding-heart monkey or the gelada baboon, is a species of Old World monkey found only in the Ethiopian Highlands, living at elevations of above sea level. It is the only living member of the genus '' Theropithecus'', a name derived from the Greek root words for "beast-ape" (θηρο-πίθηκος : thēro-píthēkos). Like its close relatives in genus ''Papio'', the baboons, it is largely terrestrial, spending much of its time foraging in grasslands, with grasses comprising up to 90% of its diet. It has buff to dark brown hair with a dark face and pale eyelids. Adult males have longer hair on their backs and a conspicuous bright red patch of skin shaped like an hourglass on their chests. Females also have a bare patch of skin but it is less pronounced, except during estrus, when it brightens and exhibits a "necklace" of fluid-filled blisters. Males average and females average in weight. The head-body length is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandrillus
''Mandrillus'' is a genus of large Old World monkeys distributed throughout Central Africa, central and southern Africa, consisting of two species: ''M. sphinx'' and ''M. leucophaeus'', the mandrill and drill (animal), drill, respectively. ''Mandrillus'', originally placed under the genus ''Papio'' as a type of baboon, is closely related to the genus ''white-eyelid mangabey, Cercocebus''. They are characterised by their large builds, elongated snouts with furrows on each side, and stub tails. Both species occupy the west central region of Africa and live primarily terrestrial animal, on the ground. They are frugivores, consuming omnivore, both meat and plants, with a preference for plants. ''M. sphinx'' is classified as vulnerable species, vulnerable and ''M. leucophaeus'' as endangered species, endangered on the ''IUCN Red List of threatened species, Threatened Species''. Taxonomy ''Mandrillus'' is a genus within the tribe Papionini, which in turn is under the subfamily Cercopi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cercocebus
The white-eyelid mangabeys are African Old World monkeys belonging to the genus ''Cercocebus''. They are characterized by their bare upper eyelids, which are lighter than their facial skin colouring, and the uniformly coloured hairs of the fur. The other two genera of mangabeys, '' Lophocebus'' and '' Rungwecebus'', were once thought to be very closely related to ''Cercocebus'', so much so that all the species were placed in one genus, but ''Lophocebus'' and ''Rungwecebus'' species are now understood to be more closely related to the baboons in genus ''Papio'', while the ''Cercocebus'' species are more closely related to the mandrill 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 Sexual dimorphism, sexually .... Species References Sources * * External links Primate Info Net ''Cercocebus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbon
Gibbons () are apes in the family Hylobatidae (). The family historically contained one genus, but now is split into four extant genera and 20 species. Gibbons live in subtropical and tropical forests from eastern Bangladesh and Northeast India to Southeast Asia and Indonesia (including the islands of Sumatra, Borneo and Java). Also called the lesser apes, gibbons differ from the great apes ( chimpanzees, gorillas, orangutans and humans) in being smaller, exhibiting low sexual dimorphism, and not making nests. Like all of the apes, gibbons are tailless. Unlike most of the great apes, gibbons frequently form long-term pair bonds. Their primary mode of locomotion, brachiation, involves swinging from branch to branch for distances up to , at speeds as fast as . They can also make leaps up to , and walk bipedally with their arms raised for balance. They are the fastest of all tree-dwelling, nonflying mammals. Depending on the species and sex, gibbons' fur coloration varies from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prosimian
Prosimians are a group of primates that includes all living and extinct Strepsirrhini, strepsirrhines (lemurs, Lorisoidea, lorisoids, and Adapiformes, adapiforms), as well as the Haplorhini, haplorhine tarsiers and their extinct relatives, the Omomyidae, omomyiforms, i.e. all primates excluding the simians. They are considered to have characteristics that are more "Primitive (biology), primitive" (ancestral or Cladistics#Terminology for character states, plesiomorphic) than those of simians (monkeys, apes, and humans). Simians emerged within the Prosimians as sister group of the Haplorhini, haplorhine tarsiers, and therefore Cladistics, cladistically belong to this group. Simians are thus distinctly closer related to tarsiers than lemurs are. Strepsirrhines bifurcated some 20 million years earlier than the tarsier - simian bifurcation. However, simians are traditionally excluded, rendering prosimians paraphyletic. Consequently, the term "prosimian" is no longer widely used in a ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New World Monkey
New World monkeys are the five families of primates that are found in the tropical regions of Mexico, Central and South America: Callitrichidae, Cebidae, Aotidae, Pitheciidae, and Atelidae. The five families are ranked together as the Ceboidea (), the only extant superfamily in the parvorder Platyrrhini (). Platyrrhini is derived from the Greek for "broad nosed", and their noses are flatter than those of other simians, with sideways-facing nostrils. Monkeys in the family Atelidae, such as the spider monkey, are the only primates to have prehensile tails. New World monkeys' closest relatives are the other simians, the Catarrhini ("down-nosed"), comprising Old World monkeys and apes. New World monkeys descend from African simians that colonized South America, a line that split off about 40 million years ago. Evolutionary history About 40 million years ago, the Simiiformes infraorder split into the parvorders Platyrrhini (New World monkeys) and Catarrhini (apes and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
