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The Expression of the Emotions in Man and Animals

"The Expression of the Emotions in Man and Animals" by Charles Darwin is a scientific work published in 1872. Darwin's third major evolutionary study examines the biological origins of human emotional behavior—from smiling and frowning to blushing and surprise. Challenging traditional spiritual explanations, Darwin traces these expressions to animal behavior and argues for their universal nature across all human cultures. Using innovative methods including questionnaires, psychological experiments, and pioneering photography, Darwin establishes connections between mental states and physical movement, forming what some consider the foundation of modern scientific psychology.

Level C1 pagesEnglish

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Categories: Psychiatry/Psychology Science - Biology

Readers: Adults Teens

Suggested age: 15+ (AI estimate)

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Level C1

Language difficulty is an AI estimate based on sampled text.

Reader and content guidance is an AI estimate based on the title, author, source summary, contents and selected excerpts. Unseen portions have not been assessed.

Recommended age: 15+ (AI estimate)
No adult-only content in samples, but dense scientific reasoning about grief, anatomy and abstract principles suits independent reading from mid-teens; younger teens would likely need supported excerpt reading. Based on named-book metadata and selected excerpts; unseen text was not assessed. This is guidance, not an official age rating; individual reading ability varies.

Source: Project Gutenberg · Public domain in the USA.

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