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Created page with "== Introduction == The term "simian" refers to the higher primates, which include both monkeys and apes. These primates are part of the infraorder Simiiformes, which is further divided into two parvorders: Platyrrhini (New World monkeys) and Catarrhini (Old World monkeys and apes). Simians are characterized by their advanced cognitive abilities, complex social structures, and diverse range of habitats. == Taxonomy and Evolution == Simiiformes are a diverse group withi..."