Concealing and revealing coloration and their relation to natural selection

Subject(s): Animals--Color, Natural history, Protective coloration (Biology)

Handwritten draft of Chapter 4 of Life Histories of African Game Animals. Theodore Roosevelt argues that followers of Charles Darwin have done a disservice to the theory of evolution by asserting the over-arching importance of natural selection in bringing about the evolution of species. The coloration of animals is one phenomenon often used to illustrate the importance of natural selection – i.e. the animals’ color traits (striped, dark, light) help to conceal it from its predators and therefore enable it to survive. Roosevelt details his observations of African game animals to contest such theories, concluding that natural selection has played a minor part in developing the coloration of these animals.

Collection

Harvard College Library

Creation Date

1910

Creator(s)

Roosevelt, Theodore, 1858-1919

Language

English

Period

African Safari (March 1909-1910)

Repository

Harvard College Library

Page Count

70

Production Method

Handwritten

Record Type

Multi-image

Resource Type

Manuscript

Rights

Electronic copy sponsored by the Theodore Roosevelt Center at Dickinson State University. For reproduction or publication permission, contact the Theodore Roosevelt Collection, Houghton Library. See the Theodore Roosevelt Digital Library Terms of Use for further copyright information.

Citation

Cite this Record

Chicago:

Concealing and revealing coloration and their relation to natural selection. [January 22, 2026]. Harvard College Library.
https://www.theodorerooseveltcenter.org/digital-library/o286452. Theodore Roosevelt Digital Library. Dickinson State University.

MLA:

Roosevelt, Theodore, 1858-1919. Concealing and revealing coloration and their relation to natural selection. [22 Jan. 2026]. Multi-image.
Harvard College Library. Theodore Roosevelt Digital Library. Dickinson State University. January 22, 2026. https://www.theodorerooseveltcenter.org/digital-library/o286452.

APA:

Roosevelt, Theodore, 1858-1919., [2026, January 22]. Concealing and revealing coloration and their relation to natural selection.
Harvard College Library. Theodore Roosevelt Digital Library. Dickinson State University.
Retrieved from https://www.theodorerooseveltcenter.org/digital-library/o286452.

Cite this Collection

Chicago:

Harvard College Library. https://www.theodorerooseveltcenter.org/collection/harvard-college-library. Theodore Roosevelt Digital Library. Dickinson State University.

MLA:

Harvard College Library. Theodore Roosevelt Digital Library. Dickinson State University. January 22, 2026. https://www.theodorerooseveltcenter.org/collection/harvard-college-library.

APA:

Harvard College Library. Theodore Roosevelt Digital Library. Dickinson State University. Retrieved from https://www.theodorerooseveltcenter.org/collection/harvard-college-library.