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pirarucu
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A large pirarucu fish (Arapaima gigas) with dark scales and reddish tail swims in an aquarium, with tree-like structures and aquatic plants in the background. Illustration of a pirarucu (Arapaima gigas), a large Amazonian freshwater fish with an elongated body, olive green scales, and a reddish tail. Representative osteoglossomorphic fishes.
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pirarucu: References & Edit History

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  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

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Article History

Type Description Contributor Date
Modified link of Web site: National Center for Biotechnology Information - PubMed Central - Whole Genome Sequencing of the Pirarucu (Arapaima gigas) Supports Independent Emergence of Major Teleost Clades. Sep 08, 2026
Add new Web site: U.S. Fish and Wildlife Service - Arapaima (Arapaima gigas) (PDF). Feb 18, 2025
Add new Web site: International Journal of Morphology - Morphology and Histology of the Pirarucu (Arapaima gigas) Digestive Tract. Oct 04, 2024
Add new Web site: IOSR Journal of Economics and Finance - Implementation of a Pirarucu Breeding System: A Cost and Feasibility Analysis. Aug 06, 2024
Add new Web site: Global Seafood Alliance - Pirarucu culture in the Brazilian Amazon. Mar 22, 2024
Add new Web site: Nature - The genome of the arapaima (Arapaima gigas) provides insights into gigantism, fast growth and chromosomal sex determination system. Nov 30, 2023
Add new Web site: National Center for Biotechnology Information - PubMed Central - Whole Genome Sequencing of the Pirarucu (Arapaima gigas) Supports Independent Emergence of Major Teleost Clades. Jul 26, 2023
Add new Web site: A-Z Animals - Arapaima. Jan 27, 2023
Added new Web site: National Geographic - Animals - Arapaima. Aug 29, 2008
Added new Web site: Who Zoo - Pirarucu. Apr 17, 2008
Added new Web site: Animal Diversity Web - Arapaima gigas. Apr 17, 2008
Article revised. Dec 14, 2000
Article added to new online database. Jul 20, 1998
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