Doug Allan

Award-Winning Natural History Photographer & Documentary Filmmaker

Andrés Ruzo

Geothermal Scientist & Amazon Conservationist

Kakenya Ntaiya

Kenyan Educator, Feminist & Social Activist

Alexander Geurds

Archaeologist, National Geographic Explorer, Associate Professor at Leiden University & University of Oxford

Chad Pregracke

Founder of Living Lands & Waters, CNN's Hero of the Year for 2013, Environmental Speaker & Bestselling Author

Lucy Cooke

Zoologist, TV Producer & Bestselling Author

Dr. Tierney Thys

Marine Biologist, Educator & Filmmaker

Losang Rabgey

Feminist, Social Innovator, Nonprofit Leader & Expert in Ethical Leadership

Hazen Audel

Adventurer, Biologist & Survival Expert

Primal Survivor | Asli Khatra, Asli Hero

Zeb Hogan

Ecologist/ Photographer

Joseph McNally

World-Renowned National Geographic Photographer

Shah Selbe

Engineer and Conservation Technologist

Rhian Waller

Associate Professor at University of Maine; Deep-Sea Ecologist

Michael Lombardi

Diving Scientist, Technologist & Environmentalist

Gerlinde Kaltenbrunner

Austrian Mountaineer, Climber & Adventurer

Ryan Van Duzer

TV Host; Motivational Speaker; Known For His Contributions to The Travel Channel

Maria Fadiman

Nat Geo Explorer, Ethnobotanist, Associate Professor Florida Atlantic University

Dr. Vernard L. Hodges

Veterinarian & Host, Known for National Geographic's "Critter Fixers: Country Vets"

Eric Siegel

Founder of Machine Learning Week, AI Expert & Best-Selling Author

The AI Playbook: Mastering the Rare Art of Machine Learning Deployment (Management on t...

Jennifer Pharr Davis

Long-Distance Hiker & Author; Overall Record Holder on the Appalachian Trail & The First Woman to Set That Mark

Outdoor School: Hiking and Camping: The Definitive Interactive Nature Guide