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Margaret Alger Hayden, US zoologist

Margaret D. Thompson, US zoologist

Olive Swezy, US zoologist

Marie Agnes Hinrichs, US zoologist and physiologist

Frank Rattray Lillie, American zoologist

Mary Stuart MacDougall, US biologist

Agnes Mary Claypole Moody, US zoologist

Mary Jane Rathbun, US zoologist

Mary Jane Rathbun, US zoologist

Ruth Winkley, US marine biologist

Viola Shelly Shantz, US zoologist

Richard von Hertwig, German zoologist

Thomas Bell, British zoologist

Ernst Haeckel, German zoologist

Ernst Haeckel, German zoologist

Scientists in academic dress at Cambridge University, 1898

Estrella Eleanor Carothers, American zoologist

Elizabeth Kinney, US zoologist

Nettie Maria Stevens, US geneticist

Charles Valentine Riley, British-US entomologist

Florence Lowther, US zoologist

James Chester Bradley, US entomologist

Florence Peebles, US biologist

Giovanni Battista Grassi, Italian zoologist

William Sollas, British zoologist

Theodosius Dobzhansky, Russian-US geneticist

Raphael Blanchard, French parasitologist

Libbie Hyman, US zoologist

John James Audubon, French-US naturalist

Barbara McClintock, American geneticist

James Chester Bradley, US entomologist

August Weismann, German zoologist

Joel Asaph Allen, US ornithologist

Edwin Conklin, US zoologist

David Bannerman, British ornithologist

Ann Haven Morgan, American zoologist

Beetle research

Benjamin Hawkins, British sculptor

John Hutchinson, zoologist

Beetle research

Louis Agassiz, Swiss-US naturalist

Neel and Miller, US geneticists

Theodosius Dobzhansky, Russian-US geneticist

Thomas Hunt Morgan, US geneticist

Konrad Gessner, Swiss naturalist

Henry Walter Bates, British naturalist

Ernest Austen, British entomologist

Edward Laurens Mark, US zoologist

1880's Sir Richard Owen and Grandaughter

William Taliaferro, US parasitologist

George Nuttall, US-British bacteriologist

Edward Wright, Irish zoologist

Theophil Studer, Swiss zoologist

Natural History Museum expedition, 1976

Charles Stiles, US parasitologist

Miriam Rothschild, British naturalist

Entomology trip, Guyana

Evelyn Cheesman, British entomologist

Clinton Merriam, US naturalist

Edward Knipling, US entomologist

Cornelia Maria Clapp, US zoologist

Russian-US geneticist Dobzhansky with fly maze, 1965

Stick insect

Cut rhino horn

Henry and Bannerman with bird-of-prey

Apsley Cherry-Garrard, British explorer

1905 Edwin Ray Lankester Zoologist

1878 Sir Richard Owen photograph portrait

British large Blue butterfly colln. 1865

John Children, British chemist

Joshua Brookes, English anatomist

Grasshopper

Titan beetle

Hercules beetle

Elephant beetle

Entomology trip, Guyana

Nathan Cobb, US zoologist

Otto Glaser, US zoologist

Edmund Harvey, US zoologist

Karl von Frisch, Austrian zoologist

Charles D. Walcott, US palaeontologist, and family

Charles D. Walcott, US palaeontologist, and family

Thomas Hunt Morgan, US geneticist

Frank Evers Beddard, British zoologist

Researcher handling lab grown coral

Alexander Wilson, ornithologist

Abby Howe Turner, American physiologist

Isabella Gordon, Scottish marine biologist

Common dormouse nest in a researcher's hand

Margaret Mann Lesley, US geneticist and cytologist

Giovanni Grassi, Italian zoologist

Lucia McCulloch, US plant pathologist

Teissier and Sirks, Geneticists

David Starr Jordan, US ichthyologist

Sir Gavin de Beer, British embryologist

George Boulenger, Belgian zoologist

George Boulenger, Belgian zoologist

Charles Darwin, British naturalist

John Hutchinson, zoologist

Bacteriology laboratory

1799 Portrait of George Shaw Zoologist

1799 Portrait of George Shaw Zoologist

Thomas Hunt Morgan, US geneticist

Charles Darwin, British naturalist

Eleanor Carothers, US geneticist

'Mammalia' (1839), 'The Zoology of the Voyage of HMS Beagle'

Richard Owen, British zoologist and palaeontologist

Researchers using infrared camera to study wolves and sheep

Charles D. Walcott with son and daughter at Burgess Shale

Isaac Lea, US conchologist

Alfred Sturtevant, US geneticist

Edwin Linton, US helminthologist

Russian-US geneticist Dobzhansky with fly jars, 1959

Lionel Rothschild, British zoologist

Darwin's 'The Descent of Man' (1871)

William Carpenter, English zoologist

Rudolph Bergh, Danish zoologist

William Herdman, Scottish zoologist

George Boulenger, British zoologist

Alexander Wetmore and John Warren Aldrich, US ornithologists

Maurice Whittinghill, US geneticist

The little Dodo Didunculus toothed pigeon

Fritz Schaudinn, German microbiologist

Mary Alice McWhinnie, US biologist

Curt Stern, German-US geneticist

Brian Fisher, US entomologist

Brian Fisher, US entomologist

Brian Fisher, US entomologist

Doris Mable Cochran, US zoologist

Herbert Jennings, US geneticist

Alexander von Humboldt, German naturalist

Nora Mae Lowe, wife of Clifton Lowe

Barbara McClintock, US cell geneticist

Al-Jahiz

Al-Jahiz

Edgar A Smith, British zoologist

Edwin Conklin, US zoologist

Richard Lydekker, British naturalist

Asian hornet research

Eleanor King, US editor and author

Charles Metz, US geneticist

Calvin Bridges, US geneticist

Theophilus Painter, US geneticist

Clarence McClung, US geneticist

Rosalind Wulzen, US physiologist

Charles Darwin, British naturalist

Johannes Holtfreter, embryologist

Selman Waksman, microbiologist

Dog behaviour research

Albert Gunther, German-British zoologist

Mirsky and Schultz, US biologists

Barbara McClintock, US cell geneticist

Margaret Reed Lewis, US cell biologist

C. Lloyd Morgan, British ethologist and psychologist

Elizabeth C. Crosby, American neuroanatomist

Mary Isabel McCracken, US entomologist

Entomologist collecting flying insects

Rubella vaccine research

William Beebe aboard the Antares, 1930s

Lab-grown corals

Lab-grown corals

Lab-grown corals

Morgan and Emerson, US geneticists

Robert Yerkes, US psychologist

Roxie Collie Simpson Laybourne, US ornithologist

Julian Huxley, British evolutionary biologist

Julian Huxley, evolutionary biologist

Beatrice Mintz, US embryologist

Cyprien Combier, French mariner

Steppe mammoths, illustration

Cuvieronius, illustration

Alexander Agassiz, US zoologist

Brian Fisher, US entomologist

Naturalist Georges Cuvier

Ethel Stiffler, US botanist

1766 Moses Harris Aurelian gold chrysalis

1775 Moses Harris Aurelian Eyed Hawk Moth

1766 Elephant Hawk Moth Harris Aurelian

1846 Richard Owen and Moa leg fossil

Saul Adler, British medical scientist

Alfred Russel Wallace, British naturalist

Forensic entomology

Calvin Bridges, US geneticist

Common dormouse anaesthetised in a researcher's hand

'Birds' (1841), 'The Zoology of the Voyage of HMS Beagle'

Helen Marie Gunz, US science librarian

Edoardo Perroncito, Italian physician

Adam Sedgwick, British zoologist

Joseph Fayrer, British physician

August Forel, Swiss psychiatrist

Thomas Huxley, British naturalist

Yuri Filipchenko, Russian entomologist

Wilmatte Porter Cockerell, US botanist and entomologist

Etienne Saint-Hilaire, French naturalist

Ernst Haeckel, German zoologist

Patrick Manson, Scottish physician

Charles Stockard, US zoologist

1871 George John Romanes Darwin friend

John J Audubon, American naturalist

E. Trewavas, British ichthyologist