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National Geographic

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Crime scene DNA has traditionally been used to link a victim to a criminal. With a new process known as phenotyping, though, investigators are using that DNA to reverse engineer a profile of what the perpetrator might look like. Today on "Think," Lauren Silverman talked with National Geographic online science editor Erika Engelhaupt about phenotyping and other CSI innovations. The story, “Beyond a Reasonable Doubt” appears in the July issue of National Geographic magazine.

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Slowly, West Africa is prying itself free from the grip of the Ebola virus. Today on Think, Krys Boyd talked about why it’s tough for scientists to track the virus once an outbreak ends with David Quammen, who writes about the topic in the July issue of National Geographic.

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Gary Knell’s career as a CEO started on Sesame Street, wound through NPR, and now has landed at the National Geographic Society. He’s in town today to speak at a North Texas Commission luncheon in Irving.

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Followers of the Paleo Diet believe we should stick to foods that our hunter-gatherer ancestors ate. Protein – good. Carbs – bad. Today on Think, Krys Boyd talked to a National Geographic writer who’s studied the evolution of the human diet to get her take.