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Henry Ridgely Evans - Public Domain
Harper’s Weekly, January 5, 1861, (detail), Collection of U.S. House of Representatives - Public Domain
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user at project - Public Domain
unknown - Public Domain
Orrin B. Judd - Public Domain
Cornelis Galle - Public Domain
Public Domain
Apollo Temu - CC BY 2.0
AppO - CC BY-SA 4.0
''unknown'' - Public Domain
Royal Zoological Society of New South Wales; -
user at project - CC BY-SA 3.0
Charles Fenderich (1805-1887) - Public Domain
Carl Van Vechten - Public Domain
:en:Henry Jamison Handy -
Gianfranco - Public Domain
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Henry Ridgely Evans - Public Domain
Soo, Chung Ling, 1861-1918
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Foster, Rube, 1879-1930
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Courtney, Inez, 1908-1975
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Harper’s Weekly, January 5, 1861, (detail), Collection of U.S. House of Representatives - Public Domain
Jones, John James, 1824-1898
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Jacobstein, Meyer, 1880-1963
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Nadar Upload and restoration by Jebulon - CC0 1.0
Luigini, A. (Alexandre), 1850-1906
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Castro, Raúl, 1930-
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user at project - Public Domain
Bankes, John, Sir, 1589-1644
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Romero, Óscar A. (Óscar Arnulfo), 1917-1980
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unknown - Public Domain
Field, Sally
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Orrin B. Judd - Public Domain
Maclay, William B. (William Brown), 1812-1882
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Howard, L.O. (Leland Ossian), 1857-1950
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Cornelis Galle - Public Domain
Deciani, Tiberio, 1509-1582
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Public Domain
Ansted, D. T. (David Thomas), 1814-1880
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Forestier, J.C.N. (Jean-Claude Nicolas), 1861-1930
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Bourgeois, Albéric, 1876-1962
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Apollo Temu - CC BY 2.0
Mwinyi, Ali Hassan, 1925-
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unknown - Public Domain
Van Brunt, Henry, 1832-1903
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AppO - CC BY-SA 4.0
Mâche, François-Bernard
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''unknown'' - Public Domain
Harty, Hamilton, 1879-1941
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Rohmer, Éric, 1920-2010
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Royal Zoological Society of New South Wales; -
Troughton, Ellis, 1893-1974
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user at project - CC BY-SA 3.0
Islam, Jamal N.
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Charles Fenderich (1805-1887) - Public Domain
Hernandez, Joseph M. (Joseph Marion), 1788-1857
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Murray, Les, 1945-
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Carl Van Vechten - Public Domain
Dolin, Anton, 1904-1983
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Borghi-Mamo, Adelaide, 1826-1901
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:en:Henry Jamison Handy -
Lopez, Al, 1908-
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Gianfranco - Public Domain
Manzoni, Piero, 1933-1963
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Acciaiuoli, Niccolò, 1310-1365