In this podcast, roboticist Rodney Brooks describes what "intelligence" means in his field.

Podcast produced by David Levin. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers.

Hear other experts describe what intelligence means to them. Visit us online at pbs.org/nova

Defining Intelligence: Nicholas Humphrey

NOVA brings you short audio stories from the world of science -- anything from hurricanes to mummies to neutrinos. For more science programming online and on air, visit NOVA's Web site at pbs.org/nova, or watch NOVA broadcasts Wednesday nights on PBS.