Written, Produced and Directed by
JOHN RUBIN

Edited by
JIM OHM

Supervising Producer
JAMES DONALD

Camera
NEIL RETTIG

JOHN CHATER

TOBIAS CORTS

GARY HENOCH

RICHARD SLATER-JONES

Sound Recordists
STEVE BORES

CHRISTOPHER BROWN

ROBIN HARRIS

RICHARD KOBURG

NEIL RETTIG

TOM SAMPSON

Music
ROBERT NEUFELD

Narrator
DAVID SLAVIN

Assistant Camera
SEBASTIAN KENNERKNECHT

CHRISTIAN MEYER

MATT THURBER

Animation
HOWARD P. STERN

Assistant Editor
YARI WOLINSKY

Child Studies Science Consultant
LIZ BARAFF BONAWITZ

Production Manager
NEETU CHOPRA

Online Editor
JOE BRIDGERS

Colorist
DAVID MARKUN

Audio Mix
GREG MCCLEARY

Sound Design
GEOF THURBER

Research
JONATHAN SACKS

Animal Handler
GREG LILLE

Gaffers
CALEB CAUDLE

SKIP HUNT

Key Grips
TIM DRISCOLL

MITCH HAWKINS

GREG SIMPSON

Fixers
RICHARD LADKANI

OUMAR KANDE

Production Assistant
JOHN BLACKWELL

Props
TOBY ANNIS

Archival Material
BBC Motion Gallery
Brian Hare
Chedd-Angier-Lewis
Crickette Sanz
Anne Fischer & Michel Halbwax
Frans Lanting Studio
Great Ape Research Institute
Jill Pruetz
Max Planck Institute for Evolutionary Anthropology
National Geographic Television
NHK International
Pioneer Productions
Primate Research Institute, Kyoto University
WGBH
Wolfgang Bayer

Special Thanks
Daniel Cassanto
Christine Eckstrom
Antje Girndt
Yi Ting Huang
Marc Hauser
Esther Herrmann
Lydia Hopper
Susan Lambeth
Derek E. Lyons
Alicia Melis
Martina Neumann
Steven J. Schapiro
Laura Schulz

Executive Producer For National Geographic Television
JOHN BREDAR

NOVA Series Graphics
yU + co.

NOVA Theme Music
WALTER WERZOWA

JOHN LUKER

MUSIKVERGNUEGEN, INC.

Additional NOVA Theme Music
RAY LORING

Post Production Online Editor
JIM FERGUSON

Closed Captioning
THE CAPTION CENTER

NOVA Administrator
ASHLEY KING

Publicity
EILEEN CAMPION

LINDSAY DE LA RIGAUDIERE

KATE BECKER

Left to Right: Neil Rettig, John Rubin, Andrew Whiten

Researcher
GAIA REMEROWSKI

Production Coordinator
LINDA CALLAHAN

Paralegal
RAPHAEL NEMES

Talent Relations
SCOTT KARDEL, ESQ.

JANICE FLOOD

Legal Counsel
SUSAN ROSEN

Assistant Editor
ALEX KREUTER

Associate Producer, Post Production
PATRICK CAREY

Post Production Supervisor
REGINA O’TOOLE

Post Production Editor
REBECCA NIETO

Post Production Manager
NATHAN GUNNER

Supervising Producer
STEPHEN SWEIGART

Business Manager
JOSEPH P. TRACY

Producers, Special Projects
LISA MIROWITZ

DAVID CONDON

Coordinating Producer
LAURIE CAHALANE

Senior Science Editor
EVAN HADINGHAM

Senior Series Producer
MELANIE WALLACE

Managing Director
ALAN RITSKO

Senior Executive Producer
PAULA S. APSELL

A Production of NOVA and National Geographic Television in association with John Rubin Productions, Inc.

© 2008 NGHT, Inc. and WGBH Educational Foundation

All Rights Reserved