Portal:Primates
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![Status iucn3.1 LC.svg](/w/images/thumb/5/5a/Status_iucn3.1_LC.svg/300px-Status_iucn3.1_LC.svg.png)
Least Concern (IUCN 3.1)|Least Concern
Geoffroy's tamarin (Saguinus geoffroyi), also known as the Panamanian, red-crested or rufous-naped tamarin, is a tamarin, a type of small monkey, found in Panama and Colombia. It is predominantly black and white, with a reddish nape. Diurnal, Geoffroy's tamarin spends most of its time in trees, but does come down to the ground occasionally. It lives in groups that most often number between three and five individuals, and generally include one or more adults of each gender. It eats a variety of foods, including insects, exudates, fruits and other plant parts. Insects and fruits account for the majority of its diet, but exudates are also important. But since its teeth are not adapted for gouging trees to get to the sap, it can only eat exudates when they are easily available. Although a variety of reproductive methods are used, the most common is for a single adult female in the group to be reproductively active and to mate with multiple adult males in the group. After a gestation period of about 145 days, she gives birth to either a single infant or twins. Males contribute significantly to care of the infants. Sexual maturity is reached at about 2 years, and it can live up to 13 years. Geoffroy's tamarin is classified as "Least Concern" by the IUCN.
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- ... that both Margot Marsh's mouse lemur and Arnhold's mouse lemur are separated from their closest relatives by species barriers?
- ... that the gestation period of the ring-tailed lemur is approximately 146 days?
- ... that the endangered golden lion tamarin has a long, but not prehensile, tail?
- ... that until December 2008, the red lemur and the red-fronted lemur (pictured) were considered the same species?
- ... that the gray-handed night monkey is nocturnal and monogamous?
- ... that Corcovado National Park is the only national park in which all of Costa Rica's four native monkey species can be found?
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Human body • Human evolution • Human ecology • Human development
Tarsier • Omomyidae • Monkey • Old World monkey • New World monkey • Ape
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A primate is a member of the biological order Primates, the group that contains lemurs, the aye-aye, lorisids, galagos, tarsiers, monkeys, and apes, with the last category including great apes. With the exception of humans, who inhabit every continent on Earth, most primates live in tropical or subtropical regions of the Americas, Africa and Asia. Primates range in size from the 30-gram (1 oz) pygmy mouse lemur to the 200-kilogram (440 lb) mountain gorilla. According to fossil evidence, the primitive ancestors of primates may have existed in the late Cretaceous period around 65 mya (million years ago), and the oldest known primate is the Late Paleocene Plesiadapis, c. 55–58 mya. Molecular clock studies suggest that the primate branch may be even older, originating in the mid-Cretaceous period around 85 mya. Primates exhibit a wide range of characteristics. Some primates do not live primarily in trees, but all species possess adaptations for climbing trees. Locomotion techniques used include leaping from tree to tree, walking on two or four limbs, knuckle-walking, and swinging between branches of trees (known as brachiation). Primates are characterized by their large brains relative to other mammals. These features are most significant in monkeys and apes, and noticeably less so in lorises and lemurs. Many species are sexually dimorphic, which means males and females have different physical traits, including body mass, canine tooth size, and coloration.
Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found. William Charles Osman Hill (13 July 1901 – 25 January 1975) was a British anatomist, primatologist, and a leading authority on primate anatomy during the 20th century. He is best known for his nearly completed eight-volume series, Primates: Comparative Anatomy and Taxonomy, which covered all living and extinct primates known at the time in full detail and contained illustrations created by his wife, Yvonne. Schooled at King Edward VI Camp Hill School for Boys in Birmingham and University of Birmingham, he went on to publish 248 works and accumulated a vast collection of primate specimens that are now stored at the Royal College of Surgeons of England. Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found. Emperor tamarins inhabit tropical rain forests, living deep in the forest and also in open tree-covered areas. This diurnal species walks or runs quadrupedally through the forest, spending the majority of its days in the trees with quick, safe movements and broad jumps among the limbs. |