Charles Darwin (1809-1882), English Naturalist and author who established the theory of evolution. One of his mayor works The Expression of the Emotions in Man and Animalsfocused on the evolution of human psychology and its continuity with the behaviour of animals.

Charles Darwin theory of emotions is based on similarities between animals and man in the expression of emotions

Evolution : Who Was Charles Darwin?

Amont Charles Darwing books are :

Selected Bibliography : Encyclopedia Britannica.

Next researcher on emotions: Ivan Pavlov