Biology

Célestin Charles Alfred Bouglé, Gustav Albert Schwalbe, William Bateson, C. Lloyd (Conwy Lloyd) Morgan, Harald Høffding, Ernst Heinrich Philipp August Haeckel, August Weismann, J. Arthur (John Arthur) Thomson, P. N. (Philip Napier) Waggett, J. B. (John Bagnell) Bury

Julianne Zedalis, John Eggebrecht

Leonard Huxley, Thomas Henry Huxley

William Henry Giles Kingston

O'Reilly Media Inc.

G. T. (George Thomas) Bettany

Alfred Russel Wallace

Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Brian M. Forster, Philip Lister

Thomas Henry Huxley, Charles Darwin

St. George Mivart

Charles Darwin, Francis Darwin, A. C. (Albert Charles) Seward

O'Reilly Media Inc.

William J. (William Joseph) Long

CK-12 Foundation

Samuel Christian Schmucker

Ernst Heinrich Philipp August Haeckel

Samantha Fowler, Rebecca Roush, James James Wise Wise

Inc. O'Reilly Media