• Sylvia Earle
National Geographic Explorer-in-Residence Sylvia Earle joins Boyd to talk about her new National Geographic book The World Is Blue: How Our Fate and the Ocean's Are One. Earle explains how just 50 years of swift and dangerous oceanic change threatens the very existence of life on Earth.
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• Rama Lakshmi
Washington Post reporter Rama Lakshmi joins Boyd to talk about the problem of man-eating leopards in northern India. Leopards are increasingly abducting children as they play outside and, understandably, the population is fighting back by killing the leopards. Lakshmi explains why the attacks are on the rise.
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• Carol Yoon
New York Times science writer Carol Yoon has a new book titled Naming Nature: The Clash Between Instinct and Science. Yoon tells Boyd a special part of the human brain is reserved for identifying living things.
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• Brian Gratwicke
Brian Gratwicke is working to cure one of the deadliest diseases ever. A research biologist for the Smithsonian Institute at the National Zoo, Gratwicke is trying to save frogs and salamanders from a fungus that is decimating many amphibian species, and he thinks he and his colleagues may be onto a cure.
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• Steve Casimiro
National Geographic Adventure magazine’s Gear Guru Steve Casimiro joins Boyd to review point and shoot cameras.
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• Anthony Zinni
Retired four-star United States Marine Corps General Anthony Zinni joins Boyd to talk about leadership, a topic Zinni covers in his new book Leading the Charge: Leadership Lessons from the Battlefield to the Boardroom.
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• Whitman Miller
Ecologist Whitman Miller of the Smithsonian Environmental Research Center on the Chesapeake Bay tells Boyd we’re facing an invasion of foreign species, and the intruders are wreaking havoc on many ecosystems here in the United States.
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• Roff Smith
Five centuries ago a ship loaded with gold wrecked off a mysterious, fogbound beach laden with diamonds. Now the ship has been found. Author Roff Smith tells the story in the October National Geographic magazine article “Shipwreck in the Forbidden Zone.”
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• Michael Forsberg
People often consider the Great Plains “fly-over country.” But in his new book Great Planes, photographer Michael Forsberg shows the amazing diversity of life found in the miles of open space east of the Rockies and west of the Mississippi.
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• How long can you hold your breath? How high can you climb? And just how cold can you get and still survive? Boyd tests the limits to answer these and other survival questions.
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