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Spider Monkey
Spider monkeys are New World monkeys belonging to the genus ''Ateles'', part of the subfamily Atelinae, family Atelidae. Like other atelines, they are found in tropical forests of Central and South America, from southern Mexico to Brazil. The genus consistes of seven species, all of which are under threat; the brown spider monkey is critically endangered. They are also notable for their ability to be easily bred in captivity. Disproportionately long limbs and long prehensile tails make them one of the largest New World monkeys and give rise to their common name. Spider monkeys live in the upper layers of the rainforest, and forage in the high canopy, from . They primarily eat fruits, but will also occasionally consume leaves, flowers, and insects. Due to their large size, spider monkeys require large tracts of moist evergreen forests, and prefer undisturbed primary rainforest. They are social animals and live in bands of up to 35 individuals, but will split up to forage durin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simia Paniscus
The red-faced spider monkey (''Ateles paniscus'') also known as the Guiana spider monkey or red-faced black spider monkey, is a species of spider monkey found in the rain forests in northern South America. The species faces issues with hunting and habitat loss, so is listed as Vulnerable on the IUCN Redlist. Description The red-faced spider monkey has long, black hair and a red or pink face that is bare except for a few short, white hairs. Infants are born with dark faces, which lighten as they age. Sexual dimorphism in the species is small; the head-body length of the male is on average, while the female is around in length. The male weighs around , while the female weighs around . The tail is prehensile (capable of grasping) and its fingers and limbs are long, agile and strong. Behavior The red-faced spider monkey exhibits a fission-fusion society, associating with large groups of up to 30 individuals during the night, but choosing to spend the days travelling. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encyclopædia Britannica, Inc
An encyclopedia (American English) or encyclopædia (British English) is a reference work or compendium providing summaries of knowledge either general or special to a particular field or discipline. Encyclopedias are divided into articles or entries that are arranged alphabetically by article name or by thematic categories, or else are hyperlinked and searchable. Encyclopedia entries are longer and more detailed than those in most dictionaries. Generally speaking, encyclopedia articles focus on '' factual information'' concerning the subject named in the article's title; this is unlike dictionary entries, which focus on linguistic information about words, such as their etymology, meaning, pronunciation, use, and grammatical forms.Béjoint, Henri (2000)''Modern Lexicography'', pp. 30–31. Oxford University Press. Encyclopedias have existed for around 2,000 years and have evolved considerably during that time as regards language (written in a major international or a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Human Evolution
The ''Journal of Human Evolution'' is a monthly peer-reviewed scientific journal that concentrates on publishing the highest quality papers covering all aspects of human evolution. JHE was established in 1972 and is published by Elsevier. The Editors-in-Chief are Andrea B. Taylor ( Touro University California, USA) and Clément Zanolli ( University of Bordeaux, France). The central focus of JHE is aimed jointly at paleoanthropological work, covering human and primate fossils, and at comparative studies of living species, including both morphological and molecular evidence. These include descriptions of new discoveries, analyses and interpretations of new and previously described material, and assessments of the phylogeny and paleobiology of primate species. In addition to original research papers, space is allocated for the rapid publication of short communications on new discoveries, such as exciting new fossils, as well as lead book reviews, obituaries and review papers of exceptio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alouatta
Howler monkeys (genus ''Alouatta'', monotypic in subfamily Alouattinae) are the most widespread primate genus in the Neotropics and are among the largest of the platyrrhines along with the muriquis (''Brachyteles''), the spider monkeys (''Ateles'') and woolly monkeys (''Lagotrix''). These monkeys are native to South and Central American forests. They are famous for their loud howls, which can travel more than a mile through dense rain forest. Fifteen species are recognized. Previously classified in the family Cebidae, they are now placed in the family Atelidae. They are primarily folivores but also significant frugivores, acting as seed dispersal agents through their digestive system and their locomotion. Threats include human predation, habitat destruction, and capture for pets or zoo animals. Classification * ''A. palliata'' group ** Coiba Island howler, ''Alouatta coibensis'' *** ''Alouatta coibensis coibensis'' *** Azuero howler, ''Alouatta coibensis trabeata'' ** Mantl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speciation
Speciation is the evolutionary process by which populations evolve to become distinct species. The biologist Orator F. Cook coined the term in 1906 for cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages. Charles Darwin was the first to describe the role of natural selection in speciation in his 1859 book ''On the Origin of Species''. He also identified sexual selection as a likely mechanism, but found it problematic. There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry, agriculture, or laboratory experiments. Whether genetic drift is a minor or major contributor to speciation is the subject of much ongoing discussion. Rapid sympatric speciation can take place through polyploidy, such as by doubling of chromosome numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachyteles
The muriquis, also known as woolly spider monkeys, are the monkeys of the genus ''Brachyteles''. They are closely related to both the spider monkeys and the woolly monkeys. The two species are the southern (''B. arachnoides'') and northern (''B. hypoxanthus'') muriquis. They are the two largest species of 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 ...s, and the northern species is one of the most endangered of all the world's monkeys. The muriqui is the largest monkey in South America, and it lives primarily in coffee estates in Southeastern Brazil. Males are the same size and weight as females. References Further reading * External links Conservation of the Muriqui from Brazil * * Primate Info Net ''Brachyteles'' FactsheetSouthern Muriqui Home Page- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagothrix
The woolly monkeys are the genus ''Lagothrix'' of New World monkeys, usually placed in the family Atelidae. Both species in this genus originate from the rainforests of South America. They have prehensile tails and live in relatively large social groups. Taxonomy The following 2 species and 5 subspecies are currently considered to be within the genus: *Yellow-tailed woolly monkey, ''L. flavicauda'' (formerly placed in genus ''Oreonax'') * Common woolly monkey, ''L. lagothricha'' ** Gray woolly monkey, ''L. l. cana'' **Brown woolly monkey, ''L. l. lagothricha'' ** Colombian woolly monkey, ''L. l. lugens'' ** Silvery woolly monkey, ''L. l. poeppigii'' ** Peruvian woolly monkey, ''L. l. tschudii'' Description Woolly monkeys are closely related to spider monkeys. They have a thick brown coat with dark gray appendages. The stomach area is black and heads are light brown. The fur color is the same for both males and females. Variation in color exist among subspecies. A pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muriqui
The muriquis, also known as woolly spider monkeys, are the monkeys of the genus ''Brachyteles''. They are closely related to both the spider monkeys and the woolly monkeys. The two species are the southern (''B. arachnoides'') and northern (''B. hypoxanthus'') muriquis. They are the two largest species of 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 ...s, and the northern species is one of the most endangered of all the world's monkeys. The muriqui is the largest monkey in South America, and it lives primarily in coffee estates in Southeastern Brazil. Males are the same size and weight as females. References Further reading * External links Conservation of the Muriqui from Brazil * * Primate Info Net ''Brachyteles'' FactsheetSouthern Muriqui Home Page- P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulnerable Species
A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction improve. Vulnerability is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity, an example being the military macaw. There are currently 5196 animals and 6789 plants classified as Vulnerable, compared with 1998 levels of 2815 and 3222, respectively. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. Criteria The International Union for Conservation of Nature uses several criteria to enter species in this category. A taxon In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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