Actor
Christopher Ryan
1 movies as actor
Also known as Christopher Ryan Ph.D.
Christopher Ryan is an American author. He earned a Bachelor of Arts degree in English and American literature in 1984. He later pursued doctoral studies in Psychology at Saybrook Graduate School in San Francisco. His dissertation examining Darwin’s rather naive understanding of human sexual evolution was later advanced in a book, Sex at Dawn (2010). His second book, Civilized to Death: The Price of Progress was published in 2019.
Known for
Christopher Ryan movies
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