Image of facing pages (p. 54-55) from The expression of the emotions in man and animals / by Charles Darwin. London : John Murray, 1872. Page 54 has illustration: Fig. 7. Half bred shepherd dog in the same state as in Fig. 5. Page 55 has illustration: Fig. 8. The same caressing his master. By Mr. A. May. Darwin's theory called not only for physical evolution, but also psychological evolution. Emotional expression, he argued, is not solely a human trait; it could be found in apes, monkeys, and many other animals.
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Exhibited: "Rewriting the book of nature"
Rewriting the book of nature, Hidden treasure, and Is part of: Expression of the emotions in man and animals; See related catalog record: 1267767