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'''Lemurs''' are members of a class of [[primate]]s known as [[prosimian]]s and make up the infraorder '''Lemuriformes'''. This type of primate is considered the evolutionary predecessor of [[simian]]s: monkeys and apes. The term "lemur" is derived from the [[Latin]] word ''[[lemures]]'', meaning "spirits of the night," and likely refers to the large, reflective eyes which many of the nocturnal lemur species have. The term is generically used for the members of the four lemuriform families, but it is also the genus of one of the lemuriform species, the [[Ring-tailed Lemur]] (''Lemur catta''). The two so-called [[flying lemur]] species are not lemurs, nor are they even primates.
'''baby lemurs are soo CUTEEEEEE luv them <3''' are members of a class of [[primate]]s known as [[prosimian]]s and make up the infraorder '''Lemuriformes'''. This type of primate is considered the evolutionary predecessor of [[simian]]s: monkeys and apes. The term "lemur" is derived from the [[Latin]] word ''[[lemures]]'', meaning "spirits of the night," and likely refers to the large, reflective eyes which many of the nocturnal lemur species have. The term is generically used for the members of the four lemuriform families, but it is also the genus of one of the lemuriform species, the [[Ring-tailed Lemur]] (''Lemur catta''). The two so-called [[flying lemur]] species are not lemurs, nor are they even primates.


==Biology==
==Biology==

Revision as of 16:13, 16 April 2007

Lemurs[1]
Ring-tailed Lemurs (Lemur catta)
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Primates
Suborder:
Strepsirrhini
Infraorder:
Lemuriformes

Gray, 1821
Superfamilies and Families

baby lemurs are soo CUTEEEEEE luv them <3 are members of a class of primates known as prosimians and make up the infraorder Lemuriformes. This type of primate is considered the evolutionary predecessor of simians: monkeys and apes. The term "lemur" is derived from the Latin word lemures, meaning "spirits of the night," and likely refers to the large, reflective eyes which many of the nocturnal lemur species have. The term is generically used for the members of the four lemuriform families, but it is also the genus of one of the lemuriform species, the Ring-tailed Lemur (Lemur catta). The two so-called flying lemur species are not lemurs, nor are they even primates.

Biology

Lemurs are found naturally only on the island of Madagascar and some smaller surrounding islands, including the Comoros (where it is likely they were introduced by humans). Fossil evidence indicates that they made their way across the ocean after Madagascar broke away from the continent of Africa.[2] While their ancestors were displaced in the rest of the world by monkeys, apes, and other primates, the lemurs were safe from competition on Madagascar and differentiated into a number of species. These range in size from the tiny 30 gram (1 oz) Pygmy Mouse Lemur to the 10 kilogram (22 lb) Indri. The larger species some of which weighed up to 240 kg[3] have all become extinct since humans settled on Madagascar, and since the early 20th century the largest lemurs reach about 7 kilograms (15 lbs). Typically, the smaller lemurs are active at night (nocturnal), while the larger ones are active during the day (diurnal).

The small cheirogaleoids are generally omnivores, eating a variety of fruits, flowers and leaves (and sometimes nectar) as well as insects, spiders and small vertebrates. The remainder of the lemurs, the lemuroids are primarily herbivores, although some species supplement their diet with insects.

Lemurs have opposable thumbs and long grasping toes, but their tails are not prehensile. Lemurs have nails rather than claws. All lemur species have a tapetum, the reflective layer over the retina.[3] Lemurs are thought to have limited color vision.[3] Lemurs depend quite heavily on the sense of smell and have large nasal cavities and moist noses.[3]

Unlike most other primates, lemur species that live in groups have a Matriarchal society (i.e. females are dominant over males). Most lemur species are primarily arboreal and traverse the canopy by vertical clinging and leaping or quadrupedalism, with the notable exception of the Ring-Tailed Lemur (Lemur catta) which spends a considerable amount of time moving about on the ground.

Endangered species

All lemurs are endangered species or threatened species, many species became already extinct in the last centuries, due mainly to habitat destruction (deforestation) and hunting. Although conservation efforts are under way, options are limited because of the lemurs' limited range and because of Madagascar's economic situation relative to the developed world. Currently, there are 85 living lemur species accounted for in current publications,[4][5][6][7] with more currently awaiting publication. Indigenous superstitions that strepsirrhines like the nocturnal Aye-aye are omens and harbingers of bad fortune motivate some locals in remote areas to post hunting traps.

One of the foremost lemur research facilities is the Duke University Lemur Center.

Classification

Thermographic image of a Ring-tailed Lemur in the morning sun.

As shown here, the four families of lemurs are split into two superfamilies. The Cheirogaleidae have a pedal structure, similar to the other strepsirrhine families and the haplorrhines, suggesting they split off from the other lemurs first. As such, the Cheirogaleoidea are a sister clade to the Lemuroidea.

Lemurs are not as commonly seen as other primates in pop culture settings, but have recently gained in popularity due to greater exposure.

  • The novella "Ghost of Chance" by William S. Burroughs, set in Madagascar, initially focuses on a character named Captain Mission, who looks after and cares for lemurs. The book is described on the back cover of the 1995 edition as being "an important story about environmental devastation".
  • In the television show Seinfeld, the character of Newman is described as having climbing abilities rivaling those of a Ring-tailed Lemur.
  • A Ring-tailed Lemur starred in the 1997 movie Fierce Creatures written by John Cleese.
  • Zoboomafoo, an educational PBS Kids television program features a Verreaux's Sifaka who is also the show's namesake.
  • The Disney film Dinosaur (2000) features lemurs raising a dinosaur hatchling.
  • In the television program Fat Actress, Kirstie Alley keeps a pet lemur who is never seen but referenced in conversations; a recurring gag involves the proper preparation of yams for its meals.They fart where ever they go! Its amazing! Dont stand ebhind then or you'll die from the mell of beans!
  • Madagascar, a computer-animated film produced by DreamWorks Animation in 2005, prominently features a group of singing and dancing lemurs.
  • In the Nickelodeon animated series, Avatar: The Last Airbender, Aang keeps a winged lemur named Momo for a pet. Momo mostly resembles a Verreaux's Sifaka.
  • In Cartoon Network's The Life and Times of Juniper Lee, the titular character is transformed into a Ring-tailed Lemur in the episode, "The Great Escape."
  • The american rock group The Mars Volta used a Lemur in their logos, and one is used as the principal character in the video for their single Televators[1]

References

  1. ^ a b Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 111–121. ISBN 0-801-88221-4. OCLC 62265494.
  2. ^ ""What's A Lemur?"". Retrieved 2006-04-19.
  3. ^ a b c d Strier, Karen B. (2000). Primate Behavioral Ecology. Boston: Allyn and Bacon. p. 49.
  4. ^ Mittermeier, Russell A., Konstant, William R., Hawkins, Frank , Louis, Edward E., and Langrand, Olivier (2006). Lemurs of Madagascar (2nd edition ed.). Conservation International. Retrieved 2006-10-29. {{cite book}}: |edition= has extra text (help)CS1 maint: multiple names: authors list (link)
  5. ^ Andriaholinirina, N., Fausser, J., Roos, C., Rumpler, Y.; et al. (2006 February 23). "Molecular phylogeny and taxonomic revision of the sportive lemurs (Lepilemur, Primates)". BMC Evolutionary Biology. 6: 17. doi:10.1186/1471-2148-6-17. {{cite journal}}: Check date values in: |date= (help); Explicit use of et al. in: |author= (help)CS1 maint: multiple names: authors list (link)
  6. ^ Edward E. Louis, Jr., Shannon E. Engberg, Runhua Lei, Huimin Geng, Julie A. Sommer, Richard Randriamampionona, Jean C. Randriamanana, John R. Zaonarivelo, Rambinintsoa Andriantompohavana, Gisele Randria, Prosper, Boromé Ramaromilanto, Gilbert Rakotoarisoa, Alejandro Rooney, and Rick A. Brenneman (2006). "Molecular and morphological analyses of the sportive lemurs (Family Megaladapidae: Genus Lepilemur) reveals 11 previously unrecognized species" (PDF). Texas Tech University Special Publications (49): 1–49.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  7. ^ Olivieria, G., Zimmermannb, E., Randrianambininab, B., Rassoloharijaonab, S., Rakotondravonyb, D., Guschanskia, K., Radespiela, U. (2006-10-26). "The ever-increasing diversity in mouse lemurs: three new species in north and northwestern Madagascar". Molecular Phylogenetics and Evolution. doi:10.1016/j.ympev.2006.10.026.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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