Emotions and culture society. Therefore, it can be said that culture is a necessary framework for researchers to understand variations in emotions. In Darwin's opening chapter of "The Expression of the Emotions in Man and Animals", (1872/1998) Darwin considered the face to be the preeminent medium of emotional expression in humans, and capable of representing both major emotions and subtle variations within each one. Darwin's ideas about facial expressions and his reports of cultural differences became the foundation for ethological research strategies. Silvan Tomkins' (1962) "Affect Theory" 1963) built upon Darwin's research, arguing that facial expressions are biologically based, and universal manifestations of
The Descent of Man, and Selection in Relation to Sex to the forces of sexual selection. While debates on the subject continues, in January 1871 Darwin started on another book, using left over material on emotional expressions, which became "The Expression of the Emotions in Man and Animals". In recent years controversy also involved the peacock tail, the most famous symbol of the principle of sexual selection. A seven-year Japanese study of free-ranging peafowl came to the conclusion that female peafowl do not select mates merely on the basis of their trains. Mariko Takahashi found no evidence that peahens expressed any preference for peacocks with more elaborate trains, such as