National Geographic Speakers BureauLisa LingZahi HawassSpencer Wells

Scientists

Image: Robert Ballard
Robert Ballard
Underwater Explorer, Discoverer of Titanic
Experience the wonder of deep-sea exploration through Ballard and his Institute for Exploration, which uses robotics, mapping, and submersibles to explore the last great frontier.

Image: Brady Barr
Brady Barr
Herpetologist, Television Personality
Through tales of his extensive work with alligators, snakes, and other reptiles, Barr shares his passion for science and firsthand observations of a planet in peril.

Image: Wade Davis
Wade Davis
Cultural Anthropologist
A scientist, scholar, author, and passionate defender of all life's diversity, Davis lectures worldwide on the importance of cultural diversity and ethnicity.

Image: Sylvia Earle
Sylvia Earle
Marine Biologist
This world-renowned marine biologist describes the ocean as the cornerstone of Earth's life-support system, vital for the survival and well-being of humankind.

Image: J. Michael Fay
J. Michael Fay
Explorer, Conservationist
As a follow up to his 2,000-mile (3,200 kilometer) walk across the heart of Africa, Fay recently completed eight months in the air. He flew over 60,000 miles (97,000 kilometers) in a specially designed Cessna that captured a high-resolution aerial image every 20 seconds for the sweeping "Megaflyover" project.

Image: Zahi Hawass
Zahi Hawass
Egyptologist
Egypt's best known archaeologist recently ushered the treasures of King Tutankhamun's tomb to the United States for their first visit in over 25 years. The traveling exhibition broke all attendance records at the Los Angeles museum where it opened.

Image: Fred Hiebert
Fred Hiebert
Archaeologist
This National Geographic archaeology fellow played a vital role in excavating ancient treasures once thought lost in the chaos of Afghanistan's modern wars and invasions.

Image: Donald Johanson
Donald Johanson
Paleoanthropologist
Thirty years after the discovery of the fossil specimen Lucy, Johanson remains a towering figure in the study of human origins.

Image: Greg Marshall
Greg Marshall
Biologist, Inventor, Filmmaker
Natural history filmmaking would not be where it is today without Marshall's Crittercam, a device that allows scientists to record the world through the eyes, ears, and movements of animals in their habitats.

Image: Mireya Mayor
Mireya Mayor
Primatologist
This Fulbright Scholar was recently nominated for two Emmy Awards for her work as lead correspondent on National Geographic's Ultimate Explorer TV series.

Image: Nalini Nadkarni
Nalini Nadkarni
Forest Ecologist
Thanks to her Big Canopy Database, scientists are finally able to manage and share rain forest data across multiple disciplines—critical to the race to save these essential forests.

Image: Tim Samaras
Tim Samaras
Severe-Storms Researcher
Samaras is the guy running toward the tornado when everyone else is running away. Learn how cutting edge science may help save lives.

Image: Paul Sereno
Paul Sereno
Paleontologist
Refuse to believe anyone who says you must narrow your focus to achieve success: Sereno managed to blend art, science, and adventure into his dream job as a dinosaur hunter.

Image: Spencer Wells
Spencer Wells
Geneticist and Anthropologist
At an age when most scientists are getting their starts, Wells is using DNA markers to lead the farthest-reaching human-migration study ever conducted.



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Photographs by Ira Block (Ballard), Carrie Regan (Barr), Tyler Mallory (Davis), Al Giddings (Earle), Michael Nichols (Fay), Kenneth Garrett (Hawass), Mark Thiessen (Hiebert), Enrico Ferorelli (Johanson), Jim Vecchione (Marshall), Mark Thiessen (Mayor), Melissa W. Wells (Moffett), Therese Frare (Nadkarni), Jim Webb (Samaras), Mark Thiessen (Sereno), Mark Read (Wells)

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David Doubilet

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