The Expression of the Emotions in Man and Animals The Expression of the Emotions in Man and Animals The Expression of the Emotions in Man and Animals is Charles Darwin's third major work of evolutionary theory, following "On the Origin of Species" (1859) and "The Descent of Man" (1871). Originally intended as a section of "The Descent of Man", it was published separately in 1872 and concerns the biological aspects of emotional life. In this book, Darwin sets out some early ideas about behavioural genetics, and explores the animal origins of such human characteristics as the lifting of the eyebrows in moments of surprise and the mental confusion which
Body language movement of any part of the body or the body as a whole; in layman's terms, it is the study of body language. However, Ray Birdwhistell, who is considered the founder of this area of study, never used the term "body language", and did not consider it appropriate. He argued that what can be conveyed with the body does not meet the linguist's definition of language. Birdwhistell pointed out that "human gestures differ from those of other animals in that they are polysemic, that they can be interpreted to have many different meanings depending on the communicative context in which