Darwin was a prolific writer. Even without publication of his works on evolution, he would have had a considerable reputation as the author of
The Voyage of the Beagle, as a geologist who had published extensively on
South America and had solved the puzzle of the formation of
coral atolls, and as a biologist who had published the definitive work on
barnacles. While
The Origin of Species dominates perceptions of his work,
The Descent of Man, and Selection in Relation to Sex and
The Expression of Emotions in Man and Animals had considerable impact, and his books on plants including
The Power of Movement in Plants were innovative studies of great importance, as was his final work on
The Formation of Vegetable Mould Through the Action of Worms.