A National Geographic Special featuring Stanford University’s Robert Sapolsky

A Co-PRODUCTION of
NATIONAL GEOGRAPHIC TELEVISION
and
STANFORD UNIVERSITY

FOR NATIONAL GEOGRAPHIC

Senior Executive Producer
JOHN BREDAR

FOR STANFORD UNIVERSITY

Executive Producer
RANDY BEAN

Co-Executive Producer
WILLIAM FREE

Research Consultant
STUART BROWN MD

Producer/Director/Writer
JOHN HEMINWAY

Cinematographer
BOB POOLE

Narrator
MARCUS LOVETT

Additional Editing
CHRISTINE JAMESON HENRY

Co-Producer
SARAH MEYER

Associate Producers
ERIN M. REUSS
JEREMY ZIPPLE

Production Assistant
CHRISTINE WAMBUI KINYANJUI

Field Production Coordinator
JEAN HARTLEY

Additional Cinematography
MARK PETERSSON
GEORGE HITCHINS
ADAM STEVENSON
CRAIG ZWOLAK
JOHNNY SYMONS

Sound Recordists
ANDREW YARME
DAVE RUDDICK
IAN SALVAGE
GEORGE SIMPSON
S. LEO CHIANG
HASSAN ALI

Music by
LENNY WILLIAMS
CHRIS BIANDO

Visual Effects Artists
PIXEL DUST STUDIO

Production Managers
NEETU CHOPRA
CHRISTOPHER MAES

Production Coordinator
WESLEY DELLA VOLLA
HEATHER TVETER

Researcher
JILL LEGER

Director of Research
TODD HERMANN

Specialist, Production Rights and Clearances
KATIE LEE

Manager, Production Rights and Clearances
MARLENE WALKER-GOLDEN

Post Production Coordinator
REINA NISHIDA

Post Production Supervisor
SUSAN LACH

Assistant Editors
MARI BECKMAN
ANTHONY LINTON
QUINCY HINDS

Specialist, Facilities & Scheduling
MARCIE CALLAHAN

Manager, Facilities & Scheduling
JULIA WHITCOMB SHEEHY

Manager, Art and Animation
JESSE GORDON

Director of Engineering, Global Media Services
DWIGHT MAYHEW

For National Geographic Television

Director, Art and Animation
KEITH KOLDER

Director, Development
NANCY DONNELLY

Director, Production Rights and Clearances
CATHERINE YELLOZ

Director, Production Systems
BEVERLEY MARECHEAU MITCHELL

Director, Operations
TRACI C. DRUMMOND

Vice President, Operations
MICHAEL CASTRO

Senior Producer
LINDA GOLDMAN

Senior Vice President, Standards and Practices
SCOTT WYERMAN

Executive Vice President, Development
MARYANNE CULPEPPER

Senior Vice President, Specials
STEPHEN REVERAND
President, NGT
MICHAEL ROSENFELD

Special Thanks

GIJS de LEEDE
JEFF DOW
NICOLAS RUGGIA
LIZZIE KENDRICK
HEATHER ORLANDO
MARIA CARMEN MAGANA
LAIKA HOUSE
ENELDA WADE
DAVID DEMAREST
ALAN ACOSTA
LISA PEREIRA
HUDSON OYARO
MOHAMED AMIN FOUNDATION

Stock Footage
*BBC MOTION GALLERY
*BEELD EN GELUID
*CONUS
*CORBIS MOTION
*GETTY IMAGES
*STREAMLINE
*ROBERT SAPOLSKY
*STANFORD UNIVERSITY
*NATIONAL GEOGRAPHIC
*WAKE FOREST UNIVERSITY
*CEDAR POINT AMUSEMENTS
*ROYAL PERTH HOSPITAL, DEPARTMENT OF MEDICAL ILLUSTRATIONS
*DR. ANA MARIA MAGARINOS AND
*DR. BRUCE MCEWEN, ROCKEFELLER UNIVERSITY
*DR. CAROL SHIVELY
*PHOTO RESEARCHERS