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Lemur - Wingham Wildlife Park, Kent, England - Sunday August 10th 2008. Click here to see the Larger image

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From Wikipedia, the free encyclopedia ~ Lemurs make up the infraorder Lemuriformes and are members of a group of primates known as prosimians. The term "lemur" is derived from the Latin word lemures, meaning "spirits of the night" or "ghosts". This likely refers to their large, reflective eyes and the wailing cries of some species (the Indri in particular). 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 they were likely introduced by humans). Fossil evidence indicates that they reached Madagascar after it broke away from mainland Africa, possibly by "rafting" across the ocean on large clumps of vegetation. 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, have all become extinct since humans settled on Madagascar, and since the early 20th century the largest lemurs reach about 10 kilograms (22 lbs). Typically, the smaller lemurs are nocturnal, while the larger ones are 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.

Except for the Indri, all lemurs have long tails that they use for communication with each other and balance when leaping between trees. They have opposable thumbs and long toes adapted for gripping tree branches. Lemurs have nails rather than claws on all digits except the second toe of each hind foot, which has a "toilet claw" for grooming. All lemur species have a tapetum, the reflective layer over the retina that causes their eyes to shine at night. Lemurs are thought to have limited color vision. Lemurs depend heavily on the sense of smell and have large nasal cavities and moist noses.

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 arboreal and traverse the canopy by vertical clinging and leaping or quadrupedalism, with the exception of the Ring-Tailed Lemur, which spends most of its time on the ground.

Endangered species ~ lemurs are listed as endangered or threatened species. Many species have gone extinct in the last centuries, mainly due to habitat destruction (deforestation) and hunting. Conservation of lemurs in Madagascar is a high priority, but the country's poor economic situation and the lemurs' limited range make it an uphill battle. There are 85 living lemur species accounted for in current publications, with more documentation currently awaiting publication.

One of the foremost lemur research facilities is the Duke Lemur Center.
Source How much longer have I got to wait???
Author Keven Law from Los Angeles, USA


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Checked copyright icon.svg This image was originally posted to Flickr by law_keven at It was reviewed on 31 October 2012 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

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