• Jon Bowermaster
Six-time National Geographic Expeditions Council grantee Jon Bowermaster is the editor of a new book, Oceans: The Threats to Our Seas and What You Can Do to Turn the Tide. The book is a companion guide to the new Disneynature film Oceans. Bowermaster joins Boyd in the studio to talk about the essays in the book and his travels across the world’s oceans.
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• Jan Ramer
Jan Ramer is the Regional Veterinary Manager for the Mountain Gorilla Veterinary Project, working on the ground in Rwanda to make house calls for sick or injured gorillas. Ramer joins Boyd to talk about her work.
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• Kathryn Keane
The world of Cleopatra has been lost to the sea and sand for nearly 2,000 years. But it is about to surface in a new National Geographic exhibition, Cleopatra: The Search for the Last Queen of Egypt. Kathryn Keane manages National Geographic’s traveling museum exhibits and she joins Boyd in the studio to talk about this exciting new exhibit.
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• Marybeth Bond
The second edition of Marybeth Bond’s National Geographic book 50 Best Girlfriends Getaways in North America, has just been released. Bond joins Boyd in the studio to talk about the benefits of a trip with the girls—for women and men.
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• David Braun—NG News
Is the giant squid a fierce monster of the deep or a drifting, gelatinous blob? David Braun, head of National Geographic's daily online news has the answer. Braun joins Boyd to talk about the news you didn’t know you needed to know.
NG News

• Beth Shapiro
2010 National Geographic Emerging Explorer Beth Shapiro travels through time—observing mammoths, dodos, and other extinct animals. Shapiro joins Boyd in the studio to tell him what she’s learning from dodo DNA.
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• Peter Matthiessen
Peter Matthiessen is a two-time National Book Award-winning author, a former CIA employee, a co-founder of the Paris Review, and a Buddhist priest. Matthiessen joins Boyd in the studio to talk about his life and his work.
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• Ullas Karanth
Ullas Karanth, director of the Wildlife Conservation Society in India, joins Boyd to talk about the crisis facing tigers in India. Karanth and Boyd discuss ways to prevent the extinction of this majestic cat.
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• Barry Sinervo
Twenty percent of all lizard species could go extinct by 2080, according to Barry Sinervo, professor of ecology and evolutionary biology at the University of California, Santa Cruz and a National Geographic grantee. Sinervo tells Boyd what this looming crisis could mean for the world’s ecosystems.

• Did You Know—NG Theme
Boyd plays name that tune with National Geographic Weekend listeners.