What is The Expression of the Emotions in Man and Animals?
{{Use dmy dates|date=September 2013}} {{Infobox book | name = The Expression of the Emotions in Man and Animals | image = Expression of the Emotions in Man and Animals title page.jpg | image_size = 200px | caption = | author = [[Charles Darwin]] | illustrator = | country = United Kingdom | cover_artist = | language = English | subject = [[Evolution|Evolutionary theory]], [[behaviour]] | publisher = John Murray | pub_date = 1872 | media_type = | pages = | preceded_by = | followed_by =}} '''''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). Darwin had intended it as a section of ''The Descent of Man''. However, that book was already quite long: it was published in two volumes. So the ''Expression of the Emotions'' was published separately in 1872. The book is about the way emotional life is shown by the faces and actions of man and other [[mammals]]. Darwin sets out ideas that our systems of emotions are [[heredity|inherited]], and have [[evolved]] in a similar way to the more familiar structural aspects of man and animals. He explores the origins of such human characteristics as the lifting of the [[eyebrows]] in moments of [[surprise]] and the [[mental confusion]] which typically accompanies [[blushing]]. The book is very notable for being the first book to use [[photography|photographs]] as the main way of showing scientific evidence.<ref>It was one of the first books on any subject to be illustrated with photographs – with seven heliotype plates. {{cite book | author=Phillip Prodger Curator of Photography Peabody Essex Museum |title=Darwin's Camera : Art and Photography in the Theory of Evolution | url=https://books.google.com/books?id=1KI1y3te0tQC&pg=PA109 | access-date=4 August 2013 | date=29 August 2009 | publisher=Oxford University Press |isbn=978-0-19-972230-3 | pages=10