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Brachyteles Hypoxanthus
The northern muriqui (''Brachyteles hypoxanthus)'' is one of two species of muriqui. They are also known as woolly spider monkey because they exhibit the woollen pelt of woolly monkeys and the long prehensile tail of spider monkeys. Muriquis are the largest extant New World monkeys. They can reach long and weight up to . The northern muriqui is a critically endangered species that is unusual among primates in that they display egaltarian tendencies in their social relationships. This species is endemic to the Atlantic Forest region of Brazilian states of Rio de Janeiro, Espírito Santo, Minas Gerais and Bahia. Their diets, travel patterns and reproductive cycles are seasonally determined. The size of each group can fluctuate as females will move between groups of monkeys. Morphology and identification Northern muriquis exhibit features that allow them to utilize all of their limbs and tail for travel and obtaining food items. As they spend much of their life in the canopy o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Kuhl
Heinrich Kuhl (17 September 1797 – 14 September 1821) was a German naturalist and zoologist. Kuhl was born in Hanau (Hesse, Germany). Between 1817 and 1820, he was the assistant of professor Th. van Swinderen, docent natural history at the University of Groningen in Groningen (the Netherlands). In 1817, he published a monograph on bats, and in 1819, he published a survey of the parrots, ''Conspectus psittacorum''. He also published the first monograph on the petrels, and a list of all the birds illustrated in Daubenton's ''Planches Enluminées'' and with his friend Johan Coenraad van Hasselt (1797–1823) ''Beiträge zur Zoologie und vergleichenden Anatomie'' ("Contributions to Zoology and Comparative Anatomy") that were published at Frankfurt-am-Main, 1820. In 1820, he became assistant to Coenraad Jacob Temminck at the Leiden Rijksmuseum van Natuurlijke Historie. He then travelled to Java, then part of the colonial Netherlands East Indies, with his friend van Hasselt, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, or behavioural or cognitive traits. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', which is when both biological sexes are phenotypically indistinguishable from each other. Overview Ornamentation and coloration Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in coloration of sexes within a given species is called sexual dichromatism, which is commonly seen in many species of birds and reptiles. Sexual selection leads to the exaggerated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tayra
The tayra (''Eira barbara'') is an omnivorous animal from the weasel family, native to the Americas. It is the only species in the genus ''Eira''. Tayras are also known as the ''tolomuco'' or ''perico ligero'' in Central America, ''motete'' in Honduras, ''irara'' in Brazil, ''san hol'' or ''viejo de monte'' in the Yucatan Peninsula, and high-woods dog (or historically ''chien bois'') in Trinidad. The genus name ''Eira'' is derived from the indigenous name of the animal in Bolivia and Peru, while ''barbara'' means "strange" or "foreign". Description Tayras are long, slender animals with an appearance similar to that of weasels and martens. They range from in length, not including a 37- to 46-cm-long (15 to 18 in) bushy tail, and weigh . Males are larger, and slightly more muscular, than females. They have short, dark brown to black fur which is relatively uniform across the body, limbs, and tail, except for a yellow or orange spot on the chest. The fur on the head and neck i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocelot
The ocelot (''Leopardus pardalis'') is a medium-sized spotted wild cat that reaches at the shoulders and weighs between on average. It was first described by Carl Linnaeus in 1758. Two subspecies are recognized. It is native to the southwestern United States, Mexico, Central and South America, and to the Caribbean islands of Trinidad and Margarita. It prefers areas close to water sources with dense vegetation cover and high prey availability. Typically active during twilight and at night, the ocelot tends to be solitary and territorial. It is efficient at climbing, leaping and swimming. It preys on small terrestrial mammals, such as armadillos, opossums, and lagomorphs. Both sexes become sexually mature at around two years of age and can breed throughout the year; peak mating season varies geographically. After a gestation period of two to three months the female gives birth to a litter of one to three kittens. They stay with their mother for up to two years, after whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karen B
Karen may refer to: * Karen (name), a given name and surname * Karen (slang), a term and meme for a demanding woman displaying certain behaviors People * Karen people, an ethnic group in Myanmar and Thailand ** Karen languages or Karenic languages * House of Karen, a historical feudal family of Tabaristan, Iran * Karen (singer), Danish R&B singer Places * Karen, Kenya, a suburb of Nairobi * Karen City or Hualien City, Taiwan * Karen Hills or Karen Hills, Myanmar * Karen State, a state in Myanmar Film and television * ''Karen'' (1964 TV series), an American sitcom * ''Karen'' (1975 TV series), an American sitcom * ''Karen'' (film), a 2021 American crime thriller Other uses * Karen (orangutan), the first to have open heart surgery * AS-10 Karen or Kh-25, a Soviet air-to-ground missile * Kiwi Advanced Research and Education Network * Tropical Storm Karen (other) See also * Karren (name) * Karyn (given name) * Keren, Eritrea a city * Caren (disam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weaning
Weaning is the process of gradually introducing an infant human or another mammal to what will be its adult diet while withdrawing the supply of its mother's milk. The process takes place only in mammals, as only mammals produce milk. The infant is considered to be fully weaned once it is no longer fed by any breast milk (or bottled substitute). Humans In some cultures, weaning progresses with the introduction of feeding the child food that has been prechewed by the parent along with continued breastfeeding, a practice known as premastication. The practice was important throughout human history in that it naturally gave a child a greatly improved protein source in addition to preventing iron deficiency. However, premasticated food from caregivers of lower socioeconomic status in areas of endemic diseases can result in the passing of the disease to the child. How and when to wean a human infant is controversial. The American Academy of Pediatrics recommends feeding a baby onl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Home Range
A home range is the area in which an animal lives and moves on a periodic basis. It is related to the concept of an animal's territory which is the area that is actively defended. The concept of a home range was introduced by W. H. Burt in 1943. He drew maps showing where the animal had been observed at different times. An associated concept is the utilization distribution which examines where the animal is likely to be at any given time. Data for mapping a home range used to be gathered by careful observation, but nowadays, the animal is fitted with a transmission collar or similar GPS device. The simplest way of measuring the home range is to construct the smallest possible convex polygon around the data but this tends to overestimate the range. The best known methods for constructing utilization distributions are the so-called bivariate Gaussian or normal distribution kernel density methods. More recently, nonparametric methods such as the Burgman and Fox's alpha-hull and Getz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intragroup Conflict
In sociology, intragroup conflict (or infighting) refers to conflict between two or more members of the same group or team. In recent years, intragroup conflict has received a large amount of attention in conflict and group dynamics literature. This increase in interest in studying intragroup conflict may be a natural corollary of the ubiquitous use of work groups and work teams across all levels of organizations, including decision-making task forces, project groups, or production teams. Jehn identified two main types of intragroup conflict: task conflict and relationship (or emotional) conflict (e.g., differences in personal values). Antecedents There are a number of antecedents of intragroup conflict. While not an exhaustive list, researchers have identified a number of antecedents of intragroup conflict, including low task or goal uncertainty, increased group size, increased diversity (i.e., gender, age, race), lack of information sharing, and high task interdependence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clique
A clique ( AusE, CanE, or ), in the social sciences, is a group of individuals who interact with one another and share similar interests. Interacting with cliques is part of normative social development regardless of gender, ethnicity, or popularity. Although cliques are most commonly studied during adolescence and middle childhood development, they exist in all age groups. They are often bound together by shared social characteristics such as ethnicity and socioeconomic status. Examples of common or stereotypical adolescent cliques include athletes, nerds, and "outsiders". Typically, people in a clique will not have a completely open friend group and can, therefore, "ban" members if they do something considered unacceptable, such as talking to someone disliked. Some cliques tend to isolate themselves as a group and view themselves as superior to others, which can be demonstrated through bullying and other antisocial behaviors. Terminology Within the concepts of sociology, cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philopatry
Philopatry is the tendency of an organism to stay in or habitually return to a particular area. The causes of philopatry are numerous, but natal philopatry, where animals return to their birthplace to breed, may be the most common. The term derives from the Greek roots ''philo'', "liking, loving" and ''patra'', "fatherland", although in recent years the term has been applied to more than just the animal's birthplace. Recent usage refers to animals returning to the same area to breed despite not being born there, and migratory species that demonstrate site fidelity: reusing stopovers, staging points, and wintering grounds. Some of the known reasons for organisms to be philopatric would be for mating (reproduction), survival, migration, parental care, resources, etc.. In most species of animals, individuals will benefit from living in groups, because depending on the species, individuals are more vulnerable to predation and more likely to have difficulty finding resources and food. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fission–fusion Society
In ethology, a fission–fusion society is one in which the size and composition of the social group change as time passes and animals move throughout the environment; animals merge into a group (fusion)—e.g. sleeping in one place—or split (fission)—e.g. foraging in small groups during the day. For species that live in fission–fusion societies, group composition is a dynamic property. The change in composition, subgroup size, and dispersion of different groups are 3 main elements of a fission-fusion society. This social organization is found in several primates, elephants, cetaceans, ungulates, social carnivores, some birds and some fish. Species Fission-fusion societies occur among many different species of primates (e.g. chimpanzees, orangutans, and humans), elephants (e.g. forest elephants, African elephants), and bats (e.g. northern long-eared bats). The change in composition, subgroup size, and dispersion of different groups are 3 main elements of a fission-fusion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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