An international team of scientists announced yesterday that they have reconstructed the earliest known hominid skeleton. We talk with the lead researcher about the significance of the fossil, nicknamed Ardi.
Fossil Discovery
An international team of scientists announced yesterday that they have reconstructed the earliest known hominid skeleton. We talk with the lead researcher about the significance of the fossil, nicknamed Ardi.

Guests:
Tim White, professor of integrative biology at UC Berkeley and co-director of the Middle Awash Project, a team of 70 scientists that reconstructed Ardi's skeleton
David Perlman, science editor for The San Francisco Chronicle