Sex at Dawn

Exploring the evolutionary origins of modern sexuality.
Christopher Ryan, Ph.D. is co-author of Sex at Dawn: The Prehistoric Origins of Modern Sexuality (HarperCollins 2010). See full bio

Comments on "Sheryl Crow and UFOs: What's Up?"

Sheryl Crow and UFOs: What's Up?

Any Sheryl Crow fans out there? If so, you'll no-doubt remember her big breakthrough record, unoriginally called "Sheryl Crow." A few years ago, we noticed something very strange about that record. Read More

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