These clues from the Galápagos led Darwin (immediately? long afterward? here the mythic story is vague) to conclude that ...

In a new book, the medical historian Howard Markel homes in on Darwin’s physical and emotional travails — and the colleagues who rallied to his cause. By Sam Kean Sam Kean is the author of six books ...

The idea of a species is fundamental to the way that many people understand the structure of life on Earth. But ask 10 specialists how they define the concept and you might get 10 answers. In this ...

Charles Darwin publishes "On the Origin of Species by Means of Natural Selection." This volume will greatly influence Spencer F. Baird, a naturalist who is the Assistant Secretary in charge of the ...