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gray wolf
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gray wolf Illustration of a gray or timber wolf (Canis lupus) standing in profile, showing its thick fur, bushy tail, and alert expression, with a scale bar above for size reference. Two Mexican gray wolves (Canis lupus baileyi) standing side by side on a rock, both with heads raised and mouths open, howling. gray wolf parallel evolution of marsupial and placental mammals Diagram showing the biological classification hierarchy for the coyote (Canis latrans) and gray wolf (Canis lupus), with labeled taxonomic ranks from domain Eukarya down to species, and illustrations of each animal.
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gray wolf: References & Edit History

Article Contributors

Primary Contributors

  • 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.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Modified link of Web site: National Center for Biotechnology Information - PubMed Central - The genome sequence of the grey wolf, Canis lupus Linnaeus 1758. Apr 01, 2026
Add new Web site: One Earth - Gray wolves: Guardians of the wild and symbols of strength across cultures. Feb 05, 2026
Add new Web site: International Environment Library Consortium - San Diego Zoo Wildlife Alliance Library - Gray Wolf (Canis lupus) Fact Sheet: Summary. Sep 20, 2025
Add new Web site: Nature - Grey wolf genomic history reveals a dual ancestry of dogs. Aug 08, 2025
Add new Web site: National Center for Biotechnology Information - PubMed Central - The genome sequence of the grey wolf, Canis lupus Linnaeus 1758. May 25, 2025
Add new Web site: Washington Department of Fish and Wildlife - Gray wolf (Canis lupus). Jul 08, 2024
Link added. Sep 29, 2023
Add new Web site: National Park Service - Yellowstone National Park - Gray Wolf. Apr 07, 2023
Add new Web site: Smithsonian's National Zoo and Conservation Biology Institute - Gray wolf. Oct 12, 2022
Noted that they were removed from the U.S. endangered species list in 2020. Nov 05, 2020
Added illustration of a gray wolf (Canis lupus). Oct 19, 2018
Article revised and updated. Oct 19, 2018
Add new Web site: The National Wildlife Federation - Gray Wolf. Mar 14, 2014
Add new Web site: Defenders of Wildlife - Gray Wolf. Aug 20, 2012
New article added. Jul 06, 2012
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