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The Dragons of Eden
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The Dragons of Eden: Speculations on the Evolution of Human Intelligence is a Pulitzer Prize winning 1977 book by Carl Sagan. In it, he combines the fields of anthropology, evolutionary biology, psychology, andcomputer science to give a perspective of how human intelligence evolved. One of the main issues featured in the book is the search for a quantitative way of measuring intelligence. Sagan shows that the brain to body mass ratio is an extremely good indicator, with humans having the highest and dolphins second. Other topics mentioned include the evolution of the brain, the evolutionary purpose of sleepand dreams, demonstration of sign language abilities by chimps and the purpose of mankind's innate fears and myths.
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