Famous 19th Century Zoologists

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 1 Fridtjof Nansen

Fridtjof Nansen
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Famous As: Explorer, Polymath
Birthdate: October 10, 1861
Sun Sign: Libra
Birthplace: Oslo, Norway
Died: May 13, 1930

Fridtjof Nansen was a Norwegian polymath who won the prestigious Nobel Peace Prize in 1922 for his post-war efforts after the First World War. A well-known explorer, humanitarian, and diplomat, Nansen achieved international fame for his attempt to reach the geographical North Pole during his Fram expedition. His techniques and innovations influenced a generation of succeeding Antarctic and Arctic expeditions.

 2 Ernst Haeckel

Ernst Haeckel
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Famous As: Zoologist
Birthdate: February 6, 1834
Sun Sign: Aquarius
Birthplace: Potsdam, Germany
Died: July 31, 1919

Ernst Haeckel had initially practiced medicine before he gained an interest in Charles Darwin’s theory and began exploring zoology and related fields. He not only coined terms such as ecology, but also named numerous species and created a genealogical tree. He drew numerous figures of animals and sea creatures, too.

 3 Georges Cuvier

Georges Cuvier
4
Famous As: Naturalist
Birthdate: August 23, 1769
Sun Sign: Virgo
Birthplace: Montbéliard, France
Died: May 13, 1832

Georges Cuvier was a French zoologist and naturalist. A major figure in the early 19th century's research of natural sciences, Cuvier played an important role in establishing the fields of comparative paleontology and anatomy by comparing fossils with living animals, for which he is sometimes regarded as the founding father of paleontology.

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 4 Thomas Hunt Morgan

Thomas Hunt Morgan
4
Famous As: Geneticist
Birthdate: September 25, 1866
Sun Sign: Libra
Birthplace: Lexington
Died: December 4, 1945

Thomas Hunt Morgan was an evolutionary biologist, geneticist, and embryologist. He won the Nobel Prize in Physiology or Medicine in 1933. He worked extensively on the role that the chromosome plays in heredity and demonstrated that genes are carried on chromosomes. In his later career, he established the division of biology at the California Institute of Technology. 

 5 Louis Agassiz

Louis Agassiz
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Famous As: Geologist
Birthdate: May 28, 1807
Sun Sign: Gemini
Birthplace: Montier
Died: December 14, 1873

Louis Agassiz was a biologist and geologist. He was famous as a scholar of Earth's natural history. Born in Switzerland, he completed his education in Europe and emigrated to USA. He was appointed a professor of zoology and geology at Harvard University. He later founded the Museum of Comparative Zoology at the Lawrence Scientific School.  

 6 Walter Reed

Walter Reed
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Famous As: Military physician, Zoologist, Entomologist
Birthdate: September 13, 1851
Sun Sign: Virgo
Birthplace: Belroi
Died: November 22, 1902

 7 Walter Rothschild, 2nd Baron Rothschild

Walter Rothschild, 2nd Baron Rothschild
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Famous As: Biologist, Banker, Politician, Zoologist, Ornithologist, Entomologist, Lepidopterist
Birthdate: February 8, 1868
Sun Sign: Aquarius
Birthplace: England
Died: August 27, 1937
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 8 Élie Metchnikoff

Élie Metchnikoff
3
Famous As: Former zoologist best known for his pioneering research in immunology
Birthdate: May 15, 1845
Sun Sign: Taurus
Birthplace: Ukraine
Died: July 15, 1916

 9 David Starr Jordan

David Starr Jordan
3
Famous As: Botanist, Peace activist, Zoologist, Autobiographer, Ichthyologist
Birthdate: January 19, 1851
Sun Sign: Capricorn
Birthplace: Gainesville (village), New York
Died: September 19, 1931

Remembered as the first president of the Leland Stanford Junior University, now known as Stanford University, David Starr Jordan was a reputed ichthyologist. An anti-war activist, too, who opposed America’s participation in World War I, he spent his later years as the chief director of the World Peace Foundation.

 10 Mary J Rathbun

Mary J Rathbun
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Famous As: Zoologist
Birthdate: June 11, 1860
Sun Sign: Gemini
Birthplace: Buffalo, New York, United States
Died: April 4, 1943

 11 Karl Patterson Schmidt

Karl Patterson Schmidt
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Famous As: American zoologist
Birthdate: June 19, 1890
Sun Sign: Gemini
Birthplace: Lake Forest, Illinois, United States
Died: September 26, 1957

Karl Patterson Schmidt was a herpetologist. He studied biology and geology at Cornell University and realized his keen interest in herpetology. He later worked as a scientific assistant in herpetology at the American Museum of Natural History. He undertook many collecting expeditions for the Field Museum of Natural History in Chicago. He died after being bitten by a boomslang snake. 

 12 Friedrich Ratzel

Friedrich Ratzel
3
Famous As: Biologist, Geopolitician, Geographer, Zoologist, Political scientist, University teacher
Birthdate: August 30, 1844
Sun Sign: Virgo
Birthplace: Karlsruhe
Died: August 9, 1904

Friedrich Ratzel was a German ethnographer and geographer. He was the first person to use the term Lebensraum, which would later become an important and popular word among the National Socialists. Also an influential writer, Friedrich Ratzel's works served as a justification for imperial expansion. 

 13 August Weismann

August Weismann
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Famous As: Biologist, Zoologist, Geneticist
Birthdate: January 17, 1834
Sun Sign: Capricorn
Birthplace: Frankfurt
Died: November 5, 1914

 14 Pierre-André Latreille

Pierre-André Latreille
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Famous As: Zoologist
Birthdate: November 29, 1762
Sun Sign: Sagittarius
Birthplace: Brive-la-Gaillarde, France
Died: February 6, 1833

 15 D'Arcy Wentworth Thompson

D'Arcy Wentworth Thompson
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Famous As: Zoologist
Birthdate: May 2, 1860
Sun Sign: Taurus
Birthplace: Edinburgh, Scotland
Died: June 21, 1948

D'Arcy Wentworth Thompson was a Scottish mathematician, biologist, and classics scholar. A pioneer of mathematical biology, Thompson is best remembered for writing a book titled On Growth and Form, which is widely admired by architects, anthropologists, and biologists among others. Over the course of his illustrious career, D'Arcy Wentworth Thompson received several prestigious awards like the Daniel Giraud Elliot Medal.

 16 Charles Henry Turner

Charles Henry Turner
3
Famous As: Zoologist
Birthdate: February 3, 1867
Sun Sign: Aquarius
Birthplace: Cincinnati, Ohio, United States
Died: February 14, 1923

 17 Paul Kammerer

Paul Kammerer
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Famous As: Biologist
Birthdate: August 17, 1880
Sun Sign: Leo
Birthplace: Vienna, Austria
Died: September 23, 1926

 18 Mathurin Jacques Brisson

Mathurin Jacques Brisson
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Famous As: Philosopher
Birthdate: April 30, 1723
Sun Sign: Taurus
Birthplace: Fontenay-le-Comte, France
Died: June 23, 1806

 19 John Lubbock, 1st Baron Avebury

John Lubbock, 1st Baron Avebury
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Famous As: Anthropologist, Politician, Archaeologist, Prehistorian, Banker, Statistician, Naturalist, Zoologist, Entomologist
Birthdate: April 30, 1834
Sun Sign: Taurus
Birthplace: London
Died: May 28, 1913

British banker John Lubbock, 1st Baron Avebury, better known as Sir John Lubbock, had also been an MP. However, he is best known for his contribution to ethnography and archaeology. He is also credited with coining the terms Paleolithic and Neolithic, and is known for his books on animal behavior.

 20 Edmund Beecher Wilson

Edmund Beecher Wilson
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Famous As: Geneticist
Birthdate: October 19, 1856
Sun Sign: Libra
Birthplace: Geneva, Illinois, United States
Died: March 3, 1939

Edmund Beecher Wilson was an American geneticist and zoologist. He is credited with writing a textbook titled The Cell which is widely regarded as one of the most influential and important books in modern biology. Regarded as America's first cell biologist, Wilson is also credited with discovering the XY sex-determination system which is used to classify several mammals, including humans.

 21 Bernard Germain de Lacépède

Bernard Germain de Lacépède
3
Famous As: Naturalist
Birthdate: December 26, 1756
Sun Sign: Capricorn
Birthplace: Agen, France
Died: October 6, 1825

 22 Christian Gottfried Ehrenberg

Christian Gottfried Ehrenberg
2
Famous As: Naturalist
Birthdate: April 19, 1795
Sun Sign: Aries
Birthplace: Delitzsch, Germany
Died: June 27, 1876

 23 James Dwight Dana

James Dwight Dana
2
Famous As: Geologist
Birthdate: February 12, 1813
Sun Sign: Aquarius
Birthplace: Utica, New York, United States
Died: April 14, 1895

 24 Paul Bert

Paul Bert
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Famous As: Physiologist
Birthdate: October 19, 1833
Sun Sign: Libra
Birthplace: Auxerre, France
Died: November 11, 1886

 25 Ray Lankester

Ray Lankester
2
Famous As: Zoologists
Birthdate: May 15, 1847
Sun Sign: Taurus
Birthplace: London, England
Died: August 13, 1929

 26 Lancelot Hogben

Lancelot Hogben
3
Famous As: Medical Statistician
Birthdate: December 9, 1895
Sun Sign: Sagittarius
Birthplace: Portsmouth, England
Died: August 22, 1975

 27 Reginald Innes Pocock

Reginald Innes Pocock
2
Famous As: Zoologist
Birthdate: March 4, 1863
Sun Sign: Pisces
Birthplace: Clifton, England
Died: August 9, 1947

 28 Spencer Fullerton Baird

Spencer Fullerton Baird
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Famous As: Ornithologist
Birthdate: February 3, 1823
Sun Sign: Aquarius
Birthplace: Reading, Pennsylvania, United States
Died: August 19, 1887

 29 Clinton Hart Merriam

Clinton Hart Merriam
2
Famous As: Zoologist
Birthdate: December 5, 1855
Sun Sign: Sagittarius
Birthplace: New York, New York, United States
Died: March 19, 1942

 30 Thomas Nuttall

Thomas Nuttall
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Famous As: Botanist
Birthdate: January 5, 1786
Sun Sign: Capricorn
Birthplace: Long Preston, England
Died: September 10, 1859

English botanist and naturalist Thomas Nuttal is best known for his popular volume The Genera of North American Plants. He later taught natural history at Harvard and also studied birds, eventually releasing a book on American birds, too. He also undertook a voyage to Columbia River and Hawaii.

 31 Kitty Ponse

Kitty Ponse
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Famous As: She was a professor at the University of Geneva and received the Swiss Otto Naegeli Prize in 1961
Birthdate: September 5, 1897
Sun Sign: Virgo
Birthplace: Sumatra, Indonesia
Died: February 10, 1982

Otto Naegeli Prize-winning Swiss zoologist and endocrinologist Kitty Ponse was born to Dutch parents in the then-Dutch colony, Sumatra, present-day Indonesia. She moved to Switzerland at 8, and grew up to be a pioneering researcher of sex determination and differentiation in amphibians. She also co-founded the journal Acta Endocrinologica.

 32 Isidore Geoffroy Saint-Hilaire

Isidore Geoffroy Saint-Hilaire
2
Famous As: Zoologist
Birthdate: December 16, 1805
Sun Sign: Sagittarius
Birthplace: Paris, France
Died: November 10, 1861

 33 Thomas Say

Thomas Say
2
Famous As: Entomologist
Birthdate: June 27, 1787
Sun Sign: Cancer
Birthplace: Philadelphia, Pennsylvania, United States
Died: October 10, 1834

 34 Oscar Hertwig

Oscar Hertwig
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Famous As: Zoologist
Birthdate: April 21, 1849
Sun Sign: Taurus
Birthplace: Friedberg, Germany
Died: October 25, 1922

 35 Charles Wyville Thomson

Charles Wyville Thomson
2
Famous As: Zoologist
Birthdate: March 5, 1830
Sun Sign: Pisces
Birthplace: Bonsyde, Scotland
Died: March 10, 1882

 36 Elliott Coues

Elliott Coues
2
Famous As: Historian
Birthdate: September 9, 1842
Sun Sign: Virgo
Birthplace: Portsmouth, New Hampshire, United States
Died: December 25, 1899

Renowned ornithologist Elliott Coues, known for his pathbreaking written works such as Key to North American Birds, had established the American Ornithological Union. He had also previously worked as an army surgeon and later taught anatomy. He was also briefly part of the Theosophical Society, though he later lost interest.

 37 Wilhelm Roux

Wilhelm Roux
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Famous As: Zoologist
Birthdate: June 9, 1850
Sun Sign: Gemini
Birthplace: Jena, Germany
Died: September 15, 1924

 38 Max Schultze

Max Schultze
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Famous As: Anatomist
Birthdate: March 15, 1825
Sun Sign: Pisces
Birthplace: Freiburg im Breisgau, Germany
Died: June 16, 1874

 39 Agostino Bassi

Agostino Bassi
2
Famous As: Entomologist
Birthdate: September 25, 1773
Sun Sign: Libra
Birthplace: Mairago, Italy
Died: February 8, 1856

 40 C. Lloyd Morgan

C. Lloyd Morgan
2
Famous As: Psychologist
Birthdate: February 6, 1852
Sun Sign: Aquarius
Birthplace: London, England
Died: March 6, 1936

 41 Florentino Ameghino

Florentino Ameghino
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Famous As: Naturalist
Birthdate: September 18, 1854
Sun Sign: Virgo
Birthplace: Luján, Argentina
Died: August 6, 1911

 42 Libbie Hyman

Libbie Hyman
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Famous As: Zoologist
Birthdate: December 6, 1888
Sun Sign: Sagittarius
Birthplace: Des Moines, Iowa, United States
Died: August 3, 1969

 43 Ross Granville Harrison

Ross Granville Harrison
2
Famous As: Zoologist
Birthdate: January 13, 1870
Sun Sign: Capricorn
Birthplace: Germantown, Philadelphia, Pennsylvania, United States
Died: September 30, 1959

 44 Alexandre Brongniart

Alexandre Brongniart
2
Famous As: Chemist
Birthdate: February 5, 1770
Sun Sign: Aquarius
Birthplace: Paris, France
Died: October 7, 1847

Best known for exploring the geology of the Tertiary Period, Alexandre Brongniart initially taught natural history and then became a professor of mineralogy. He also worked for the development of porcelain enameling in France. His other works include a classification of reptiles and the introduction of geologic dating.

 45 Alcide d'Orbigny

Alcide d'Orbigny
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Famous As: Naturalist
Birthdate: September 6, 1802
Sun Sign: Virgo
Birthplace: Coueron, France
Died: June 30, 1857

 46 Victor Ernest Shelford

Victor Ernest Shelford
1
Famous As: Zoologist
Birthdate: September 22, 1877
Sun Sign: Virgo
Birthplace: Chemung, New York, United States
Died: December 27, 1968

 47 Alfred Newton

Alfred Newton
2
Famous As: Ornithologist
Birthdate: June 11, 1829
Sun Sign: Gemini
Birthplace: Geneva, Switzerland
Died: June 7, 1907

 48 William Henry Flower

William Henry Flower
1
Famous As: Surgeon
Birthdate: November 30, 1831
Sun Sign: Sagittarius
Birthplace: Stratford-upon-Avon, England
Died: July 1, 1899

 49 Theophilus Painter

Theophilus Painter
2
Famous As: Zoologist
Birthdate: August 22, 1889
Sun Sign: Leo
Birthplace: Salem, Virginia, United States
Died: October 5, 1969

Zoologist Theophilus Painter made some groundbreaking studies on chromosomes, with special focus on the X and Y chromosomes and chromosomes of the salivary glands of the Drosophila fly. The Yale alumnus was associated with the University of Texas, where he eventually became the president.

 50 Karl Möbius

Karl Möbius
1
Famous As: Zoologist
Birthdate: February 7, 1825
Sun Sign: Aquarius
Birthplace: Eilenburg, Germany
Died: April 26, 1908