树懒亚目

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樹懶亞目


三趾樹懶
科學分類
界： 動物界 Animalia

門： 脊索動物門 Chordata

綱： 哺乳綱 Mammalia

總目： 貧齒總目 Xenarthra

目： 披毛目 Pilosa

亞目： 樹懶亞目 Folivora
Delsuc et al, 2001

科
二趾樹懶科 Megalonychidae

樹懶科 Bradypodidae
及見內文

樹懶，在生物分類學上是哺乳綱貧齒總目披毛目下樹懶亞目的俗稱，包括有樹懶科和二趾樹懶科。其移動的速度非常非常地慢，长期居住树上，因不能在地面爬行，所以如果不幸掉到地面，容易成为其他肉食性动物的猎物。共有兩科六種，雖然外觀上相似，但兩科之間的分別頗大。


[编辑] 分類
樹懶科 Bradypodidae
樹懶屬 Bradypus
侏三趾樹懶 B. pygmaeus
鬃毛三趾樹懶 B. torquatus
白喉三趾樹懶 B. tridactylus
褐喉三趾樹懶 B. variegatus
二趾樹懶科 Megalonychidae
二趾樹懶屬 Choloepus
霍氏樹懶 C. hoffmanni
二趾樹懶 C. didactylus
顯示▼隱藏▲查 • 論 • 編 • 歷按亞目分類的披毛目現存物種
界 動物界 · 門 脊索動物門 · 綱 哺乳綱 · 亞綱 真獸亞綱 · 總目 貧齒總目
樹懶亞目 Folivora (樹懶)

樹懶科 Bradypodidae 樹懶屬 Bradypus 侏三趾樹懶（B. pygmaeus） · 鬃毛三趾樹懶（B. torquatus） · 白喉三趾樹懶（B. tridactylus） · 褐喉三趾樹懶（B. variegatus）

二趾樹懶科 Megalonychidae 二趾樹懶屬 Choloepus 二趾樹懶（C. didactylus） · 霍氏樹懶（C. hoffmanni）

蠕舌亞目 Vermilingua (食蟻獸)

侏食蟻獸科 Cyclopedidae 侏食蟻獸屬 Cyclopes 侏食蟻獸（C. didactylus）

食蟻獸科 Myrmecophagidae 食蟻獸屬 Myrmecophaga 大食蟻獸（M. tridactyla）

小食蟻獸屬 Tamandua 中美小食蟻獸（T. mexicana） · 小食蟻獸（T. tetradactyla）

分類

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树懒属

树懒属
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三趾樹懶


褐喉三趾樹懶 B. variegatus
科學分類
界： 動物界 Animalia

門： 脊索動物門 Chordata

綱： 哺乳綱 Mammalia

總目： 貧齒總目 Xenarthra

目： 披毛目 Pilosa

亞目： 樹懶亞目 Folivora

科： 樹懶科 Bradypodidae

屬： 樹懶屬 Bradypus
Linnaeus, 1758



綠色：褐喉三趾樹懶，藍色：白喉三趾樹懶，紅色：鬃毛三趾樹懶
種
侏三趾樹懶 B. pygmaeus
鬃毛三趾樹懶 B. torquatus
白喉三趾樹懶 B. tridactylus
褐喉三趾樹懶 B. variegatus

樹懶屬（學名：Bradypus，常被誤寫與誤讀為「樹獺」），生物分類學上屬於樹懶亞目下的樹懶科，也是樹懶科當中的唯一一屬，更常見的俗稱為三趾樹懶。與同為樹懶亞目下的另一屬二趾樹懶屬是近親，分布地區也相近。樹懶的移動速度極慢，最高記錄僅為0.15 mph [1]。此屬僅有四種，全分佈在美洲地區。


[编辑] 種
侏三趾樹懶 B. pygmaeus
鬃毛三趾樹懶 B. torquatus
白喉三趾樹懶 B. tridactylus
褐喉三趾樹懶 B. variegatus

[编辑] 參考
^ 動物的移動速度：三趾樹懶
树懒属是一個關於哺乳類的小作品，你可以經由編輯或修訂擴充其內容。


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树懒

树懒
维基百科，自由的百科全书
(重定向自树懒亚目)
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樹懶亞目


三趾樹懶
科學分類
界： 動物界 Animalia

門： 脊索動物門 Chordata

綱： 哺乳綱 Mammalia

總目： 貧齒總目 Xenarthra

目： 披毛目 Pilosa

亞目： 樹懶亞目 Folivora
Delsuc et al, 2001

科
二趾樹懶科 Megalonychidae

樹懶科 Bradypodidae
及見內文

樹懶，在生物分類學上是哺乳綱貧齒總目披毛目下樹懶亞目的俗稱，包括有樹懶科和二趾樹懶科。其移動的速度非常非常地慢，长期居住树上，因不能在地面爬行，所以如果不幸掉到地面，容易成为其他肉食性动物的猎物。共有兩科六種，雖然外觀上相似，但兩科之間的分別頗大。


[编辑] 分類
樹懶科 Bradypodidae
樹懶屬 Bradypus
侏三趾樹懶 B. pygmaeus
鬃毛三趾樹懶 B. torquatus
白喉三趾樹懶 B. tridactylus
褐喉三趾樹懶 B. variegatus
二趾樹懶科 Megalonychidae
二趾樹懶屬 Choloepus
霍氏樹懶 C. hoffmanni
二趾樹懶 C. didactylus
顯示▼隱藏▲查 • 論 • 編 • 歷按亞目分類的披毛目現存物種
界 動物界 · 門 脊索動物門 · 綱 哺乳綱 · 亞綱 真獸亞綱 · 總目 貧齒總目
樹懶亞目 Folivora (樹懶)

樹懶科 Bradypodidae 樹懶屬 Bradypus 侏三趾樹懶（B. pygmaeus） · 鬃毛三趾樹懶（B. torquatus） · 白喉三趾樹懶（B. tridactylus） · 褐喉三趾樹懶（B. variegatus）

二趾樹懶科 Megalonychidae 二趾樹懶屬 Choloepus 二趾樹懶（C. didactylus） · 霍氏樹懶（C. hoffmanni）

蠕舌亞目 Vermilingua (食蟻獸)

侏食蟻獸科 Cyclopedidae 侏食蟻獸屬 Cyclopes 侏食蟻獸（C. didactylus）

食蟻獸科 Myrmecophagidae 食蟻獸屬 Myrmecophaga 大食蟻獸（M. tridactyla）

小食蟻獸屬 Tamandua 中美小食蟻獸（T. mexicana） · 小食蟻獸（T. tetradactyla）

分類

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Sloths (disambiguation)

Sloth (disambiguation)
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Sloth may refer to:

Look up sloth in
Wiktionary, the free dictionary.
The Sloth, a South American mammal
The Ground sloth, several extinct species related to the above mammal.
Sloth (deadly sin), one of the seven deadly sins, meaning spiritual apathy
Sloth (band)
Sloth, a deformed man in the 1985 movie, The Goonies
Sloth, a character in the anime and manga series Fullmetal Alchemist
"Sloth", a graphic novel by Love and Rockets co-creator, Gilbert Hernandez
"Sloth", a song by Fairport Convention from their album Full House (1970)
"The Sloth", a song by Phish from their album The Man Who Stepped into Yesterday (1987)
'Sloths!' is the name of an SNL Digital Short
The term sloth is also used for other slow-moving animals.
The Sloth Bear of Southeast Asia
Several species of lorises, lemurs and galagos
The Koala has been called the "Australian sloth".
Jørn Sloth is a Danish chess grandmaster.



This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

Retrieved from "http://en.wikipedia.org/wiki/Sloth_(disambiguation)"
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Sloths

Sloth
From Wikipedia, the free encyclopedia
Jump to: navigation, search
This article is about the South American mammal. For other uses, see Sloth (disambiguation).
Sloths [1]


Brown-throated Three-toed Sloth
(Bradypus variegatus)
Gatun Lake, Republic of Panama.
Scientific classification
Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

Subclass: Theria

Infraclass: Eutheria

Superorder: Xenarthra

Order: Pilosa

Suborder: Folivora
Delsuc, Catzeflis, Stanhope, and Douzery, 2001

Families
Bradypodidae
Megalonychidae
†Megatheriidae
†Mylodontidae
†Orophodontidae
†Nothrotheriidae

The living sloths comprise six species of medium-sized mammals that live in Central and South America belonging to the families Megalonychidae and Bradypodidae, part of the order Pilosa. The sloth's taxonomic suborder is Folivora, while some call it Phyllophaga. Both names mean "leaf-eaters"; the first is derived from Latin, the second from ancient Greek. Tribal names include Ritto, Rit and Ridette, mostly forms of the word "sleep", "eat" and "dirty" from Tagaeri tribe of Huaorani.

Contents [hide]
1 Megatherium
2 Ecology
3 Physiology
4 Classification of the sloth
5 Gallery
6 References
7 External links



Megatherium
Until geologically recent times, large ground sloths such as Megatherium[2] lived in South America and parts of North America, but along with many other animals they disappeared immediately after the arrival of humans on the continent[3] Much evidence suggests that human hunting contributed to the extinction of the American megafauna, like that of far northern Asia, Australia, New Zealand, and Madagascar [4]. Simultaneous climate change that came with the end of the last Ice age may have also played a role in some cases. However, the fact that ground sloths survived on the Antilles long after they had died out on the mainland points towards human activities as the agency of extinction.


Ecology
The living sloths are omnivores. They may eat insects, small lizards, and carrion, but their diet consists mostly of buds, tender shoots, and leaves, mainly of Cecropia trees. They have made extraordinary adaptations to an arboreal browsing lifestyle. Leaves, their main food source, provide very little energy or nutrition and do not digest easily. Sloths therefore have very large, specialized, slow-acting stomachs with multiple compartments in which symbiotic bacteria break down the tough leaves. As much as two-thirds of a well-fed sloth's body-weight consists of the contents of its stomach, and the digestive process can take a month or more to complete.

Even so, leaves provide little energy, and sloths deal with this by a range of economy measures: they have very low metabolic rates (less than half of that expected for a creature of their size), and maintain low body temperatures when active (30 to 34 °C or 86 to 93 °F), and still lower temperatures when resting.

Although unable to survive outside the tropical rainforests of South and Central America, within that environment sloths are outstandingly successful creatures: they can account for as much as half the total energy consumption and two-thirds of the total terrestrial mammalian biomass in some areas.[citation needed] Of the six living species, only one, the Maned Three-toed Sloth (Bradypus torquatus), has a classification of "endangered" at present. The ongoing destruction of South America's forests, however, may soon prove a threat to other sloth species.


Physiology

Hoffmann's Two-toed Sloth, Choloepus hoffmanni.Sloth fur exhibits specialized functions: the outer hairs grow in a direction opposite from that of other mammals. In most mammals, hairs grow toward the extremities, but because sloths spend so much time with their legs above their bodies, their hairs grow away from the extremities in order to provide protection from the elements while the sloth hangs upside down. In moist conditions, the fur hosts two species of symbiotic cyanobacteria, which provide camouflage[5][6]. Because of this algae, sloth fur is a small ecosystem of its own, hosting many species of non-parasitic insects.[7]. Sloths have short, flat heads; big eyes; a short snout; long legs; and tiny ears. They also have stubby tails, usually 6-7cm long. Altogether, sloths' bodies usually are anywhere between 50 and 60 cm long.

Sloths' claws serve as their only natural defense. A cornered sloth may swipe at its attackers in an effort to scare them away or wound them. Despite sloths' apparent defenselessness, predators do not pose special problems: sloths blend in with the trees and, moving only slowly, do not attract attention. Only during their infrequent visits to ground level do they become vulnerable. The main predators of sloths are the jaguar, the harpy eagle, and humans. The majority of sloth deaths in Costa Rica are due to contact with electrical line and poachers. Despite their adaptation to living in trees, sloths make competent swimmers. Their claws also provide a further unexpected deterrent to human hunters - when hanging upside-down in a tree they are held in place by the claws themselves and often do not fall down even if shot from below.


Pale-throated Three-toed Sloth (Bradypus tridactylus) in a Costa Rican rehabilitation center.Sloths move only when necessary and even then very slowly: they have about a quarter as much muscle tissue as other animals of similar weight. They can move at a marginally higher speed if they are in immediate danger from a predator (4.5 m or 15 feet per minute), but they burn large amounts of energy doing so. Their specialized hands and feet have long, curved claws to allow them to hang upside-down from branches without effort[8]. While they sometimes sit on top of branches, they usually eat, sleep, and even give birth hanging from limbs. They sometimes remain hanging from branches after death. On the ground their maximum speed is 0.54 meters per second (1.2 mph)[9].

It had been thought that sloths were among the most somnolent animals, sleeping from 15 to 18 hours each day. Recently, however, Dr. Neil Rattenborg and his colleagues from the Max Planck Institute for Ornithology in Starnberg, Germany, published a study testing sloth sleep-patterns in the wild; this is the first study of its kind. The study indicated that sloths sleep just under 10 hours a day.[10] They go to the ground to urinate and defecate about once a week. They go to the same spot each time and are vulnerable while doing so. The reason for this risky behavior is unknown, although some believe that this is to avoid making noise while defecating from up high that would attract predators.[11]

Infant sloths normally cling to their mother's fur, but occasionally fall off. Sloths are very sturdily built and rarely die from a fall. In some cases they die from a fall indirectly because the mothers prove unwilling to leave the safety of the trees to retrieve the young. Females normally bear one baby every year, but sometimes sloths' low level of movement actually keeps females from finding males for longer than one year.

Almost all mammals have seven cervical vertebrae or "neck bones" (including those with very short necks, such as elephants or whales, and those with very long necks, such as giraffes). The few exceptions include manatees and two-toed sloths, which each have only six cervical vertebrae, and three-toed sloths with nine cervical vertebrae.[12]


Classification of the sloth
The living sloths belong to one of two families, known as the Megalonychidae ("two-toed" sloths) and the Bradypodidae (three-toed sloths). All living sloths have in fact three toes; the "two-toed" sloths, however, have only two fingers. Two-toed sloths are generally faster moving than three-toed sloths. Both types tend to occupy the same forests: in most areas, one species of three-toed sloth and one species of the larger two-toed type will jointly predominate.

However, their adaptations belie the actual relationships of the living sloth genera, which are more distant from each other than their outward similarity suggests. The common ancestor of the two genera apparently lived 35-40 million years ago, making the living forms stunning examples of convergent or parallel evolution.[13] The two-toed sloths of today are far more closely related to one particular group of ground sloths than to the living three-toed sloths. Whether these ground-dwelling Megalonychidae were descended from tree-climbing ancestors or whether the two-toed sloths are really miniature ground sloths converted (or reverted) to arboreal life cannot presently be determined to satisfaction. The latter possibility seems slightly more likely, given the fact that the small ground sloths Acratocnus and Neocnus which were also able to climb are among the closer relatives of the two-toed sloths, and that these together were related to the huge ground sloths Megalonyx and Megalocnus.

The evolutionary history of the three-toed sloths is not at all well-known. No particularly close relatives, ground-dwelling or not, have yet been identified.

The ground sloths do not constitute a monophyletic group. Rather, they make up a number of lineages, and as far as is known until the Holocene most sloths were in fact ground-dwellers. The famous Megatherium for example belonged to a lineage of ground sloths that was not very close to the living sloths and their ground-living relatives like the small Neocnus or the massive Megalonyx. Meanwhile, Mylodon, among the last ground sloths to disappear, was only very distantly related to either of these.

ORDER PILOSA[1]
Suborder Folivora
Family Bradypodidae
Genus Bradypus (Three-toed sloths)
Pygmy Three-toed Sloth, Bradypus pygmaeus
Maned Three-toed Sloth, Bradypus torquatus
Pale-throated Three-toed Sloth, Bradypus tridactylus
Brown-throated Three-toed Sloth, Bradypus variegatus
Family Megalonychidae (includes extinct megalonychid ground sloths)
Genus Choloepus (Two-toed sloths)
Linnaeus's Two-toed Sloth, Choloepus didactylus
Hoffmann's Two-toed Sloth, Choloepus hoffmanni
Family †Megatheriidae: megatheriid ground sloths
Family †Mylodontidae: mylodontid ground sloths
Family †Orophodontidae: orophodontid ground sloths
Family †Nothrotheriidae: nothrotheriid ground sloths

Suborder Vermilingua (anteaters and tamanduas)

Gallery

Brown-throated Three-toed Sloth (Bradypus variegatus), Cahuita National Park, Costa Rica.

Choloepus sp., Dortmund Zoo.

Megatherium fossil.

Scelidotherium leptocephalum fossil. Muséum national d'histoire naturelle, Paris.


Paramylodon harlani fossil, National Museum of Natural History, Washington, D.C.

Brown-throated Three-toed Sloth The only publicly displayed Three-toed in the US. Dallas World Aquarium and Zoo, Dallas, TX.

Reconstruction of giant ground sloth based on Megalonyx jeffersonii, Iowa Museum of Natural History.



References
^ a b Gardner, Alfred (November 16, 2005). Wilson, D. E., and Reeder, D. M. (eds). ed. Mammal Species of the World (3rd edition ed.). Johns Hopkins University Press. pp. 100-101. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3/browse.asp?id=11800002.
^ Wildfacts "Megatherium". BBC Science & Nature. http://www.bbc.co.uk/nature/wildfacts/factfiles/456.shtml Wildfacts. Retrieved on 2007-01-09.
^ Wildfacts "Megatherium". BBC Science & Nature. http://www.bbc.co.uk/nature/wildfacts/factfiles/456.shtml Wildfacts. Retrieved on 2007-01-09.
^ Wildfacts "Megatherium". BBC Science & Nature. http://www.bbc.co.uk/nature/wildfacts/factfiles/456.shtml Wildfacts. Retrieved on 2007-01-09.
^ Rainforest Canopy—Animals
^ The Hidden Lives of Sloths: Interesting Thing of the Day
^ Minds in the Making | Science and Technology | Wisdom in Nature
^ Mendel, 1979; 1981a; 1981b; 1985
^ http://hypertextbook.com/facts/1999/IvyWeinberg.shtml
^ http://news.bbc.co.uk/2/hi/science/nature/7396356.stm BBC News Article "Sloth's Lazy Image 'A Myth'"
^ David Attenborough, Life of Mammals, BBC
^ Narita, Yuichi; Kuratani, Shigeru (2005), "Evolution of the Vertebral Formulae in Mammals: A Perspective on Developmental Constraints", Journal of Experimental Zoology (Mol Dev Evol) 304 (2): 91–106, doi:10.1002/jez.b.21029
^ Gaudin, Timothy J. (2004-02-03). "Phylogenetic relationships among sloths (Mammalia, Xenarthra, Tardigrada): the craniodental evidence". Zoological Journal of the Linnean Society (Linnean Society of London) 140 (2): 255–305. doi:10.1111/j.1096-3642.2003.00100.x. http://www3.interscience.wiley.com/journal/118759635/abstract?CRETRY=1&SRETRY=0. Retrieved on 2008-12-16.

External links
Look up sloth in
Wiktionary, the free dictionary.
Wikimedia Commons has media related to: Folivora
Two-toed Sloth Page at National Geographic website
Three-toed Sloth Page at National Geographic website
Caltech Sloth Page
Aviarios del Caribe Sloth Sanctuary (open to tourists, and close to the cruise ship pier, in Costa Rica).
Sloth World: An online bibliography and database of sloth papers from around the world
Pictures from sloths.org
Movie depicting baby sloth
A website about sloths and the rain forest
[show]v • d • eExtant Pilosa species by suborder

Kingdom Animalia · Phylum Chordata · Class Mammalia · Infraclass Eutheria · Superorder Xenarthra

Folivora (Sloths)


Bradypodidae Bradypus
(Three-toed sloths) Pygmy Three-toed Sloth (B. pygmaeus) · Maned Sloth (B. torquatus) · Pale-throated Sloth (B. tridactylus) · Brown-throated Sloth (B. variegatus)


Megalonychidae Choloepus
(Two-toed sloths) Linnaeus's Two-toed Sloth (C. didactylus) · Hoffmann's Two-toed Sloth (C. hoffmanni)


Vermilingua (Anteaters)


Cyclopedidae Cyclopes Silky Anteater (C. didactylus)


Myrmecophagidae Myrmecophaga Giant Anteater (M. tridactyla)

Tamandua
(Tamanduas) Northern Tamandua (T. mexicana) · Southern Tamandua (T. tetradactyla)


Category


Retrieved from "http://en.wikipedia.org/wiki/Sloth"
Category: Pilosans
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Three-toed Sloths

Three-toed sloth
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Three-toed sloths[1]


Brown-throated Three-toed Sloth (Bradypus variegatus)
Scientific classification
Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

Order: Pilosa

Suborder: Folivora

Family: Bradypodidae

Genus: Bradypus
Linnaeus, 1758



Green: B. variegatus, Blue: B. tridactylus, Red: B. torquatus
Species
Bradypus pygmaeus
Bradypus torquatus
Bradypus tridactylus
Bradypus variegatus

The three-toed sloths are the only members of the Bradypus genus and the Bradypodidae family. Although similar to the somewhat larger and generally faster moving two-toed sloths, the two genera are not particularly closely related.[2] Both types of sloth tend to occupy the same forests: in most areas, a particular single species of three-toed sloth and a single species of the larger two-toed type will jointly predominate. Famously slow-moving, the sloth travels at a top speed of 0.15 mph.[3] Although they are quite slow in trees, three-toed sloths are agile swimmers. The offspring cling to their mother's bellies for around 9 months or so. They cannot walk on all four, therefore, they must use their front arms and claws to drag themselves across the tropical rain forest floor. Scientists do not know exactly when these mammals mate, but it is estimated to be somewhere around March or February. The three-toed sloth is almost totally arboreal ("tree-dwelling"), with a body "built to hang." It lives in the shrub or lower tree layer, but sometimes moves to the canopy. Its long, coarse, grayish-brown fur often appears greenish, not due to pigment but to algae growing on it. The sloth’s greenish color and its sluggish habits provide an effective camouflage: hanging quietly, the sloth resembles a bundle of leaves. Large curved claws help the sloth to keep a strong grip on tree branches. [4]

Contents [hide]
1 Characteristics
2 Habitat
3 Species
4 References



[edit] Characteristics
Three-toed sloths are about the size of a small dog, with the head and body having a combined length of around 60 centimeters, and the animal having a weight of 3.5-4.5 kg (or between 7 and 10 lbs). Unlike the two-toed sloths, they also have a short (6-7 cm) tail, and they have three clawed toes on all four of their limbs. Three-toed sloths are sporadically active both day and night, typically for about 10-11 hours out of every 24.[5]

They feed almost exclusively on leaves, and, like their two-toed cousins, have a complex, multi-chambered stomach to ferment tough vegetable matter. They move between different trees up to four times a day, although they prefer to keep to a particular type of tree, which varies between individuals, perhaps as a means of allowing multiple sloths to occupy overlapping home ranges without competing with each other.[5] Three-toed sloths have no incisor or canine teeth, just a set of peg-shaped cheek teeth that are not clearly divided into premolars and molars, giving them the unusually simple dental formula of:

Dentition
0.0.5
0.0.4-5

The three-toed sloth, unlike most other mammals, does not maintain a constant body temperature, being closer to a reptile in this respect. Because its body temperature goes down as the air temperature goes down, the three-toed sloth is only able to live in humid and warm environments.

Females give birth to a single young after a gestation period of around six months. They are weaned at about one month of age, but remain with the mother for several further months. Adults are solitary, and mark their territories using anal scent glands and dung middens.[5]


[edit] Habitat
Previously, three-toed sloths were believed to have lived only in Cecropia trees, locally known as Embauba trees. Recent studies indicate that they also reside in at least 96 other tree species. The original assumption was skewed because the Cecropia trees have a relatively open canopy, making it easier to observe a sloth in these trees.[citation needed]


[edit] Species
Family Bradypodidae
Genus Bradypus
Pygmy Three-toed Sloth (Bradypus pygmaeus)
Maned Three-toed Sloth (Bradypus torquatus)
Pale-throated Three-toed Sloth (Bradypus tridactylus)
Brown-throated Three-toed Sloth (Bradypus variegatus)

[edit] References
Wikimedia Commons has media related to: Bradypus
Wikispecies has information related to: Bradypus
^ Gardner, Alfred (November 16, 2005). Wilson, D. E., and Reeder, D. M. (eds). ed. Mammal Species of the World (3rd edition ed.). Johns Hopkins University Press. pp. 100-101. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3.
^ "3-Toed Sloths". http://xenarthra.org/sloth/bradypus/. Retrieved on 2007-04-09.
^ http://www.infoplease.com/ipa/A0004737.html
^ http://www.infoplease.com/ipa/A0004737.html
^ a b c Dickman, Christopher R. (1984). Macdonald, D.. ed. The Encyclopedia of Mammals. New York: Facts on File. pp. 776–779. ISBN 0-87196-871-1.
"Three-toed sloth." Passport to Knowledge. 21 Feb. 2009 .

[show]v • d • eExtant Pilosa species by suborder

Kingdom Animalia · Phylum Chordata · Class Mammalia · Infraclass Eutheria · Superorder Xenarthra

Folivora (Sloths)


Bradypodidae Bradypus
(Three-toed sloths) Pygmy Three-toed Sloth (B. pygmaeus) · Maned Sloth (B. torquatus) · Pale-throated Sloth (B. tridactylus) · Brown-throated Sloth (B. variegatus)


Megalonychidae Choloepus
(Two-toed sloths) Linnaeus's Two-toed Sloth (C. didactylus) · Hoffmann's Two-toed Sloth (C. hoffmanni)


Vermilingua (Anteaters)


Cyclopedidae Cyclopes Silky Anteater (C. didactylus)


Myrmecophagidae Myrmecophaga Giant Anteater (M. tridactyla)

Tamandua
(Tamanduas) Northern Tamandua (T. mexicana) · Southern Tamandua (T. tetradactyla)


Category


This article about a mammal is a stub. You can help Wikipedia by expanding it.


Retrieved from "http://en.wikipedia.org/wiki/Three-toed_sloth"
Categories: Mammal stubs | Pilosans
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