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Brief facts about primata:

Primates is an order of mammals, which is further divided into the strepsirrhines, which include lemurs, galagos, and lorisids; and the haplorhines, which include tarsiers; and the simians, which include monkeys and apes. Primates arose 85–55 million years ago first from small terrestrial mammals, which adapted for life in tropical forests: many primate characteristics represent adaptations to the challenging environment among tree tops, including large brain sizes, binocular vision, color vision, vocalizations, shoulder girdles allowing a large degree of movement in the upper limbs, and opposable thumbs that enable better grasping and dexterity. Primates range in size from Madame Berthe's mouse lemur, which weighs 30 g, to the eastern gorilla, weighing over 200 kg. There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and six in the 2020s.

Arboreal theory - The arboreal theory claims that primates evolved from their ancestors by adapting to arboreal life. It was proposed by Grafton Elliot Smith, a neuroanatomist who was chiefly concerned with the emergence of the primate brain.

Great Ape Project - The Great Ape Project, founded in 1993, is an international organization of primatologists, anthropologists, ethicists, and others who advocate a United Nations Declaration of the Rights of Great Apes that would confer basic legal rights on non-human great apes: bonobos, chimpanzees, gorillas and...

Human evolution - Human evolution is the evolutionary process within the history of primates that led to the emergence of Homo sapiens as a distinct species of the hominid family that includes all the great apes.

International Primate Day - International Primate Day, September 1, is an annual educational observance event organized since 2005 largely by British-based Animal Defenders International and supported annually by various primate-oriented advocacy organizations, speaks for all higher and lower primates, typically endorsing...

Monkey Day - Monkey Day is an unofficial international holiday celebrated on December 14. The holiday was created and popularized in 2000 by controversial artists Casey Sorrow and Eric Millikin when they were art students at Michigan State University.

Primatology - Primatology is the scientific study of non-human primates.

Extant Thanetian first appearances

Primates