Monkey: Difference between revisions
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'''Monkeys''' are a group of [[Primate|primates]] found in both the [[New world|"New"]] and the [[Old world|"Old" World]]. The term "monkey" is actually a [[Layperson|laypersons]] term for any one of the generally small-bodied and often distantly related primates that do not fall into the classification of [[Prosimian|prosimians]] or the generally larger bodied [[Ape|apes]] and [[Hominin|humans]]. There are two basic types of monkeys - platyrrhines and catarrhines<ref name="Fleagle">{{cite book|title=Primate Adaptation and Evolution|accessdate=|author=J. Fleagle|authorlink= |coauthors= |date=1998 |format= |work= |publisher=Academic Press: New York|pages= |language= |archiveurl= |archivedate= |quote= }}</ref><ref name="Szalay">{{cite book |title=Evolutionary History of the Primates|accessdate=|author=F. Szalay and E. Delson|authorlink= |coauthors= |date=2001 |format= |work= |publisher=Academic Press, New York|pages= |language= |archiveurl= |archivedate= |quote= }}</ref> | {{Image|Pygmy-marmoset.jpg|right|350px|The [[pygmy marmoset]] of [[South America]] is the world's smallest true monkey, generally up to about six inches (15 centimetres) long excluding the tail, which is can be up to 7.9 inches (20 centimetres).}} | ||
'''Monkeys''' are a group of [[Primate|primates]] found in both the [[New world|"New"]] and the [[Old world|"Old" World]]. The term "monkey" is actually a [[Layperson|laypersons]] term for any one of the generally small-bodied and often distantly related primates that do not fall into the classification of [[Prosimian|prosimians]] or the generally larger bodied [[Ape|apes]] and [[Hominin|humans]]. There are two basic types of monkeys - platyrrhines and catarrhines.<ref name="Fleagle">{{cite book|title=Primate Adaptation and Evolution|accessdate=|author=J. Fleagle|authorlink= |coauthors= |date=1998 |format= |work= |publisher=Academic Press: New York|pages= |language= |archiveurl= |archivedate= |quote= }}</ref><ref name="Szalay">{{cite book |title=Evolutionary History of the Primates|accessdate=|author=F. Szalay and E. Delson|authorlink= |coauthors= |date=2001 |format= |work= |publisher=Academic Press, New York|pages= |language= |archiveurl= |archivedate= |quote= }}</ref> [[South America|South American]] monkeys are known as platyrrhines and differ substantially from the catarrhines monkeys, having evolved largely in isolation.<ref name="Fleagle"/><ref name="Szalay"/> | |||
===Platyrrhine monkeys=== | ===Platyrrhine monkeys=== | ||
The name platyrrhine is derived as a descriptive term of the monkeys faces, since South American monkeys have broad, flat noses. All platyrrhine monkeys are small - the largest is only around 10kg<ref name="Fleagle"/> | The name platyrrhine is derived as a descriptive term of the monkeys' faces, since South American monkeys have broad, flat noses. All platyrrhine monkeys are small - the largest is only around 10kg.<ref name="Fleagle"/> They also exhibit many [[primitive]] dental and skeletal features including having three [[pre-molars]] in each side of their [[mandible]] and [[maxilla]] - thus they have a total of twelve premolars.<ref name="Szalay"/> | ||
All platyrrhines have a [[tail]] of some sort and five [[genera]] have [[prehensile | All platyrrhines have a [[tail]] of some sort and five [[genera]] have [[prehensile tail]]s.<ref name="Fleagle"/> The most well known of the prehensile-tailed monkeys is probably the [[spider monkey]]. Interestingly, the spider monkey has no [[thumb]].<ref name="Fleagle"/> | ||
===Catarrhine monkeys=== | ===Catarrhine monkeys=== | ||
Catarrhines monkeys are "Old World Monkeys" and all fall under the Superfamily Cercopithecidae<ref name="Szalay"/> | Catarrhines monkeys are "Old World Monkeys" and all fall under the Superfamily Cercopithecidae.<ref name="Szalay"/> They have narrow noses, eight pre-molars and none have prehensile tails.<ref name="Fleagle"/> There are two Subfamilies within the Superfamily - Cercopithecinae and Colobinae.<ref name="Szalay"/> There are approximately sixty species of cercopithicus monkey and about forty species of colobus monkey. | ||
== | ==Footnotes== | ||
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Latest revision as of 06:00, 21 September 2024
The pygmy marmoset of South America is the world's smallest true monkey, generally up to about six inches (15 centimetres) long excluding the tail, which is can be up to 7.9 inches (20 centimetres).
Monkeys are a group of primates found in both the "New" and the "Old" World. The term "monkey" is actually a laypersons term for any one of the generally small-bodied and often distantly related primates that do not fall into the classification of prosimians or the generally larger bodied apes and humans. There are two basic types of monkeys - platyrrhines and catarrhines.[1][2] South American monkeys are known as platyrrhines and differ substantially from the catarrhines monkeys, having evolved largely in isolation.[1][2]
Platyrrhine monkeys
The name platyrrhine is derived as a descriptive term of the monkeys' faces, since South American monkeys have broad, flat noses. All platyrrhine monkeys are small - the largest is only around 10kg.[1] They also exhibit many primitive dental and skeletal features including having three pre-molars in each side of their mandible and maxilla - thus they have a total of twelve premolars.[2]
All platyrrhines have a tail of some sort and five genera have prehensile tails.[1] The most well known of the prehensile-tailed monkeys is probably the spider monkey. Interestingly, the spider monkey has no thumb.[1]
Catarrhine monkeys
Catarrhines monkeys are "Old World Monkeys" and all fall under the Superfamily Cercopithecidae.[2] They have narrow noses, eight pre-molars and none have prehensile tails.[1] There are two Subfamilies within the Superfamily - Cercopithecinae and Colobinae.[2] There are approximately sixty species of cercopithicus monkey and about forty species of colobus monkey.