Mouse lemur
| Mouse lemurs | |
|---|---|
 |
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| Pygmy mouse lemur (M. myoxinus) | |
Scientific classification  |
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Class: | Mammalia |
| Order: | Primates |
| Suborder: | Strepsirrhini |
| Family: | Cheirogaleidae |
| Genus: | Microcebus É. Geoffroy, 1834[2] |
| Diversity | |
| About 24 species | |
 |
|
| Combined distribution of Microcebus[3] | |
| Synonyms[2][4] | |
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The mouse lemurs are nocturnal lemurs of the genus Microcebus. Like all lemurs, mouse lemurs are native to Madagascar.[4]
Mouse lemurs have a combined head, body and tail length of less than 27 centimetres (11 in), making them the smallest primates[5] (the smallest species being Madame Berthe's mouse lemur); however, their weight fluctuates in response to daylight duration.[6] Lemurs and Mouse Lemurs were announced by the IUCN as the most endangered of all vertebrates. There are about 24 mouse lemur species identified by 2016. There were only 2 known mouse lemur species by 1992.[7] It was estimated that the 24 mouse lemur species evolved from a common ancestor 10 million years ago. Evolution of mouse lemurs is an example for adaptive radiation.[citation needed]
Mouse lemurs are omnivorous; their diets are diverse and include insect secretions, arthropods, small vertebrates, gum, fruit, flowers, nectar, and also leaves and buds depending on the season.[citation needed]
Mouse lemurs are considered cryptic species - with very little morphological differences between the various species, but with high genetic diversity. Recent evidence points to differences in their mating calls, which is very diverse. Since mouse lemurs are nocturnal, they might not have evolved to look differently, but had evolved various auditory and vocal systems.[citation needed]
Mouse lemurs have the smallest known brain of any primate, at just 0.004 pounds (2 grams).[8]
Reproduction and Evolution
Mouse lemurs are also known for their sperm competition. During breeding seasons, the testicles of male mouse lemurs increase in size to about 130% of their normal size. This was speculated to increase the sperm production thereby conferring an advantage for the individual to bear more offspring. There are various hypotheses relating the rapid evolution of mouse lemur species to this sperm competition.[9]
Species
- Genus Microcebus: mouse lemurs[10]
- Gray mouse lemur, Microcebus murinus
- Reddish-gray mouse lemur, M. griseorufus
- Golden-brown mouse lemur, M. ravelobensis
- Northern rufous mouse lemur, M. tavaratra
- Sambirano mouse lemur, M. sambiranensis
- Simmons' mouse lemur, M. simmonsi
- Pygmy mouse lemur, M. myoxinus
- Brown mouse lemur, M. rufus
- Madame Berthe's mouse lemur, M. berthae
- Goodman's mouse lemur, M. lehilahytsara
- Jolly's mouse lemur, M. jollyae
- MacArthur's mouse lemur, M. macarthurii [11]
- Mittermeier's mouse lemur, M. mittermeieri
- Claire's mouse lemur, M. mamiratra, synonymous to M. lokobensis [12]
- Bongolava mouse lemur M. bongolavensis [12]
- Danfoss' mouse lemur M. danfossi [12]
- Arnhold's mouse lemur, M. arnholdi [13]
- Margot Marsh's mouse lemur, M. margotmarshae [13]
- Gerp's mouse lemur. M. gerpi[14]
- Anosy mouse lemur. M. tanosi[15][16]
- Marohita mouse lemur. M. marohita[15][16]
- Ganzhorn's mouse lemur. M. ganzhorni [17]
- Microcebus boraha [17]
- Microcebus manitatra [17]
References
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Wikimedia Commons has media related to Lua error in package.lua at line 80: module 'strict' not found.. |
- Mouse lemur skeleton – Skeleton from the University of Texas at Austin
- BBC video clips and news articles
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- ↑ Andrès M, Gachot-Neveu H, Perret M. 2001. Genetic determination of paternity in captive grey mouse lemurs: pre-copulatory sexual competition rather than sperm competition in a nocturnal prosimian? Behaviour 138(8):1047-63.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ http://news.softpedia.com/news/Top-10-Brains-83944.shtml
- ↑ Folia Primatol (Basel). 2003 Sep-Dec;74(5-6):355-66. Mating system in mouse lemurs: theories and facts, using analysis of paternity. Andrès M1, Solignac M, Perret M.
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