• Mike Hacker Hax
Mike Hacker Hax is a photographer and filmmaker whose roots go back three generations to Colonial East Africa. Boyd and Hax chat while standing in the Masai Mara National Reserve in Kenya. Hax explains how his grandfather and great-grandfather were both killed by wild animals while on safari.
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• James Prosek
James Prosek’s article in the September 2010 issue of National Geographic magazine details the secret lives of eels. Titled, “Mystery Travelers,” the article explains how and why these snake-like creatures spend decades in rivers and lakes, then cross oceans and spawn in secret.
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• Robert Draper
Madagascar’s geographic isolation created a wonderland of biological richness. Now population pressures and political turmoil are speeding the plunder of its rosewood, minerals and gems. Robert Draper outlines the troubles in his September 2010 National Geographic magazine article “Madagascar’s Pierced Heart.” Draper joins Boyd to discuss what can be done to save the biodiversity of this unique island.
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• David Braun
Join National Geographic's daily online news editor David Braun as he shares some of this week’s hottest stories. Braun sits down with Boyd to talk about a bear and an anteater with an unusual relationship
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• Barton Seaver
Boyd visits the kitchen of renowned cook and National Geographic Fellow Barton Seaver as part of National Geographic’s regular segment “Cooking with Barton.” Seaver shows Boyd how to save our seas while enjoying a delicious meal, by cooking up the invasive lionfish species.

• Keith Bellows
Keith Bellows, editor-in-chief of National Geographic Traveler magazine, first heard the word “Amazon” 50 years ago when he was just a child. Bellows recently took a cruise deep into a part of the Peruvian jungle that few outsiders ever see. Bellows writes about the experience in the September 2010 issue of National Geographic Traveler and joins Boyd to share stories of piranha and pink dolphins.
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• Nikki Lowry
Grab some popcorn and a soda: Nikki Lowry, director of film marketing at National Geographic, joins Boyd in the studio to talk about Restrepo and The Wildest Dream, two feature films from National Geographic that are currently in theaters. Lowry also gives listeners a sneak peak at a couple of films that are coming soon.
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• Sean Burch
Ultra-athlete Sean Burch is currently trying to set a world record by running across Nepal from India to Tibet. Burch takes a break to catch his breath and talk with Boyd via satellite phone.
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• Story-Adopting Baby Elephants
In his regular Wild Chronicles segment, Boyd shares a story about adopting orphaned baby elephants.