In the mid-19th century, paleontologists scrambling for fossils focused more on the prehistoric ancestors of contemporary creatures than on dinosaurs. But after Charles Darwin published his On the Origin of Species in 1859, the theory of evolution became one of the most controversial topics of the time.
When American paleontologist O.C. Marsh identified the Equus parvulus (now Protohippus), many biologists considered the skeleton to be validation of Darwin's theory. In this brief letter from Charles Darwin to O.C. Marsh, Darwin expresses his thanks for Cope's work in the field.
Aug 31 1880
My dear Prof. Marsh
I received some time ago your very kind note of July 28th, and yesterday the magnificent volume. I have looked with renewed admiration at the plates, and will soon read the text. Your work on these old birds on the many fossil animals of N. America has afforded the best support to the theory of evolution, which has appeared within the last 20 years. The general appearance of the copy which you have sent me is worthy of its contents, and I can say nothing stronger than this.
With cordial thanks, believe me yours very sincerely
The New Deal program CCC put three million young men to work in camps across America.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
High on a granite cliff in South Dakota's Black Hills tower the huge carved faces of four American presidents: George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt.
In the early 1830s, Texas, ruled by Mexico, held 20,000 U.S. settlers and 4,000 Mexican Tejanos, forcing residents to pick sides.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
The contradictory history of a dam that became a statement of American power and prestige.
A central figure in the narrative of how the west was won, Wyatt Earp and his story became an American legend. Part of the Wild West collection.