|
Potto
The pottos are three species of strepsirrhine primate in the genus ''Perodicticus'' of the family Lorisidae. In some English-speaking parts of Africa, they are called "softly-softlys". Etymology The common name "potto" may be from Wolof (a tailless monkey). The generic name ''Perodicticus'' is composed of Greek (, ‘maimed’) and (, "able to show/indicate", cf. , , ‘index finger’). It refers to the stubby index finger that seems mutilated. Taxonomy There are three species recognized by the IUCN Red List and American Society of Mammalogists: * West African potto (''Perodicticus potto)'' * Central African potto (''Perodicticus edwardsi'') * East African potto (''Perodicticus ibeanus'') ** Mount Kenya potto (''Perodicticus ibeanus stockleyi'') Formerly, all species were classified under one species, ''P. potto''. However, variation among pottos is significant, prompting speculation that there may be more than one species. A 2015 study confirmed there to be three dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potto Hand Mivart
The pottos are three species of strepsirrhine primate in the genus ''Perodicticus'' of the family Lorisidae. In some English-speaking parts of Africa, they are called "softly-softlys". Etymology The common name "potto" may be from Wolof (a tailless monkey). The generic name ''Perodicticus'' is composed of Greek (, ‘maimed’) and (, "able to show/indicate", cf. , , ‘index finger’). It refers to the stubby index finger that seems mutilated. Taxonomy There are three species recognized by the IUCN Red List and American Society of Mammalogists: * West African potto (''Perodicticus potto)'' * Central African potto (''Perodicticus edwardsi'') * East African potto (''Perodicticus ibeanus'') ** Mount Kenya potto (''Perodicticus ibeanus stockleyi'') Formerly, all species were classified under one species, ''P. potto''. However, variation among pottos is significant, prompting speculation that there may be more than one species. A 2015 study confirmed there to be three dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perodicticus Potto
The West African potto (''Perodicticus potto'') is a species of nocturnal strepsirrhine primate. It is found in tropical West Africa. It is also known as Bosman's potto, after Willem Bosman, who described the species in 1704. It is the type species of the genus ''Perodicticus''. Taxonomy This species was formerly considered the only species in the genus ''Perodicticus'', but a 2015 study split it into three species, with only the name ''Perodicticus potto'' only applying to the West African population. Phylogenetic evidence supports the West African potto being the most basal member of the genus ''Perodicticus'', with the other two species being sister species to one another. It is thought to have diverged from the other species during the mid-late Miocene, between 6-10 million years ago. The mysterious "false potto" (''Pseudopotto martini'') is now thought to have been a misidentified specimen of West African potto. Distribution This species ranges from Guinea west to Nige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West African Potto
The West African potto (''Perodicticus potto'') is a species of nocturnal strepsirrhine primate. It is found in tropical West Africa. It is also known as Bosman's potto, after Willem Bosman, who described the species in 1704. It is the type species of the genus ''Perodicticus''. Taxonomy This species was formerly considered the only species in the genus ''Perodicticus'', but a 2015 study split it into three species, with only the name ''Perodicticus potto'' only applying to the West African population. Phylogenetic evidence supports the West African potto being the most basal member of the genus ''Perodicticus'', with the other two species being sister species to one another. It is thought to have diverged from the other species during the mid-late Miocene, between 6-10 million years ago. The mysterious "false potto" (''Pseudopotto martini'') is now thought to have been a misidentified specimen of West African potto. Distribution This species ranges from Guinea west to Nige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
False Potto
The false potto (''Pseudopotto martini'') is a lorisoid primate of uncertain taxonomic status found in Africa. Anthropologist Jeffrey H. Schwartz named it in 1996 as the only species of the genus ''Pseudopotto'' on the basis of two specimens (consisting only of skeletal material) that had previously been identified as a potto (''Perodicticus''). The precise provenances of the two specimens are uncertain, but at least one may have come from Cameroon. Schwartz thought the false potto could even represent a separate family, but other researchers have argued that the supposed distinguishing features of the animal do not actually distinguish it from the potto; specifically, the false potto shares several features with the West African potto (''Perodicticus potto''). The false potto generally resembles a small potto, but according to Schwartz it differs in having a longer tail, shorter spines on its neck and chest vertebrae, a smaller, less complex spine on the second neck vertebra, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East African Potto
The East African potto (''Perodicticus ibeanus'') is a species of nocturnal strepsirrhine primate. It is found in Central and East Africa. Taxonomy It was formerly considered a subspecies of the West African potto (''Perodicticus potto''), but a 2015 study split it into three species, and classified ''P. ibeanus'' as a distinct species. It is thought to be the sister species to the Central African potto (''Perodicticus ibeanus''), from which it diverged during the late Miocene, about 5.5 million years ago. There are two subspecies: the type subspecies ''P. i. ibeanus'' and the possibly extinct Mount Kenya potto (''P. i. stockleyi''), known only from a single specimen collected in 1938. Distribution This species ranges from the Central African Republic and the Democratic Republic of the Congo east to western Kenya. In addition, an isolated subspecies (''P. i. stockleyi'') is endemic to the slopes of Mount Kenya, making it the easternmost population of any potto. Conservati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perodicticus Ibeanus
The East African potto (''Perodicticus ibeanus'') is a species of nocturnal strepsirrhine primate. It is found in Central and East Africa. Taxonomy It was formerly considered a subspecies of the West African potto (''Perodicticus potto''), but a 2015 study split it into three species, and classified ''P. ibeanus'' as a distinct species. It is thought to be the sister species to the Central African potto (''Perodicticus ibeanus''), from which it diverged during the late Miocene, about 5.5 million years ago. There are two subspecies: the type subspecies ''P. i. ibeanus'' and the possibly extinct Mount Kenya potto (''P. i. stockleyi''), known only from a single specimen collected in 1938. Distribution This species ranges from the Central African Republic and the Democratic Republic of the Congo east to western Kenya. In addition, an isolated subspecies (''P. i. stockleyi'') is endemic to the slopes of Mount Kenya, making it the easternmost population of any potto. Conservati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primate
Primates are a diverse order of mammals. They are divided into the strepsirrhines, which include the lemurs, galagos, and lorisids, and the haplorhines, which include the tarsiers and the simians (monkeys and apes, the latter including humans). Primates arose 85–55 million years ago first from small terrestrial mammals, which adapted to living in the trees of tropical forests: many primate characteristics represent adaptations to life in this challenging environment, including large brains, visual acuity, color vision, a shoulder girdle allowing a large degree of movement in the shoulder joint, and dextrous hands. Primates range in size from Madame Berthe's mouse lemur, which weighs , to the eastern gorilla, weighing over . There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and three in the 2020s. Primates have large bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golden Potto
Angwantibos are two species of strepsirrhine primates classified in the genus ''Arctocebus'' of the family Lorisidae. They are also known as golden pottos because of their yellow or golden coloration. Angwantibos live in tropical Africa and their range includes Nigeria, Cameroon north of the Democratic Republic of Congo. Angwantibos grow to a size of 22 to 30 cm, and have almost no tail at all. They only weigh up to 0.5 kg. Their fur is yellow brown to golden in color. Their snout is more pointed than that of the other lorids and this, along with their round ears, gives it the bear-like appearance that lends them their name in German: ''Bärenmaki'', "bear lemur". Solitary, nocturnal and arboreal, they prefer the underbrush and the lower layers of the forests. They spend the day hidden in the leaves. Like all lorisids they are characterized by slow movements. The diet of angwantibos consists predominantly of insects (mostly caterpillars), and occasionally fruits. Owin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toilet Claw
A grooming claw (or toilet claw) is the specialized claw or nail on the foot of certain primates, used for personal grooming. All prosimians have a grooming claw, but the digit that is specialized in this manner varies. Tarsiers have a grooming claw on second and third toes. In the suborder Strepsirrhini, which includes lemurs, galagos and lorises, the grooming claw is on the second toe. Less commonly known, a grooming claw is also found on the second pedal digit of night monkeys (''Aotus''), titis (''Callicebus''), and possibly other New World monkeys. The first toe is the large one, the equivalent of a human big toe. However, in all these prosimians the foot is more or less hand-like. The first toe is opposable, like a human thumb, and the second and third toes correspond approximately to the index and middle fingers. Like a claw or a nail, the grooming claw is also made of keratin Keratin () is one of a family of structural fibrous proteins also known as ''scleroproteins' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toothcomb
A toothcomb (also tooth comb or dental comb) is a dental structure found in some mammals, comprising a group of front teeth arranged in a manner that facilitates grooming, similar to a hair comb. The toothcomb occurs in lemuriform primates (which includes lemurs and lorisoids), treeshrews, colugos, hyraxes, and some African antelopes. The structures evolved independently in different types of mammals through convergent evolution and varies both in dental composition and structure. In most mammals the comb is formed by a group of teeth with fine spaces between them. The toothcombs in most mammals include incisors only, while in lemuriform primates they include incisors and canine teeth that tilt forward at the front of the lower jaw, followed by a canine-shaped first premolar. The toothcombs of colugos and hyraxes take a different form with the individual incisors being serrated, providing multiple tines per tooth. The toothcomb is usually used for grooming. While licking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thumb
The thumb is the first digit of the hand, next to the index finger. When a person is standing in the medical anatomical position (where the palm is facing to the front), the thumb is the outermost digit. The Medical Latin English noun for thumb is ''pollex'' (compare ''hallux'' for big toe), and the corresponding adjective for thumb is ''pollical''. Definition Thumb and fingers The English word ''finger'' has two senses, even in the context of appendages of a single typical human hand: # Any of the five terminal members of the hand. # Any of the four terminal members of the hand, other than the thumb Linguistically, it appears that the original sense was the first of these two: (also rendered as ) was, in the inferred Proto-Indo-European language, a suffixed form of (or ), which has given rise to many Indo-European-family words (tens of them defined in English dictionaries) that involve, or stem from, concepts of fiveness. The thumb shares the following with each of the o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vestigiality
Vestigiality is the retention, during the process of evolution, of genetically determined structures or attributes that have lost some or all of the ancestral function in a given species. Assessment of the vestigiality must generally rely on comparison with homologous features in related species. The emergence of vestigiality occurs by normal evolutionary processes, typically by loss of function of a feature that is no longer subject to positive selection pressures when it loses its value in a changing environment. The feature may be selected against more urgently when its function becomes definitively harmful, but if the lack of the feature provides no advantage, and its presence provides no disadvantage, the feature may not be phased out by natural selection and persist across species. Examples of vestigial structures (also called degenerate, atrophied, or rudimentary organs) are the loss of functional wings in island-dwelling birds; the human vomeronasal organ; and the hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Primate")
