The Voyage of the Beagle, also known as Darwin's Journal of Researches, is a vivid and exciting travel memoir as well as a detailed scientific field journal. The title refers to the second survey expedition of the ship HMS Beagle, which set sail from Plymouth Sound on 27 December 1831 under the command of Captain Robert FitzRoy, R. N. Darwin's observations were written at a time when Western Europeans were exploring and charting the whole world.

The Voyage of the Beagle is the title most commonly given to the book written by Charles Darwin and published in 1839 as his Journal and Remarks, bringing him considerable fame and respect. The book is a detailed scientific field journal covering biology, geology, and anthropology that demonstrates Darwin's keen powers of observation.

Charles Robert Darwin (12 February 1809 – 19 April 1882) was an English naturalist and geologist, best known for his contributions to evolutionary theory. He established that all species of life have descended over time from common ancestors, and in a joint publication with Alfred Russel Wallace introduced his scientific theory that this branching pattern of evolution resulted from a process that he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding.