Face-Off: Should We Clone Fading Species?

In this corner: Robert Lanza, vice president of medical and scientific development, Advanced Cell Technology (ACT). And in this corner: Kent Redford, director, Wildlife Conservation Society Institute.

by Courtesy the San Diego Zoo

Back from the brink: this baby banteng was cloned from a 25-year-old frozen-skin cell.Courtesy the San Diego Zoo

This April, ACT scientists made the world's first healthy clone of an endangered species (banteng cows). Lanza argues that cloning is a powerful tool for saving endangered wildlife. Redford counters that cloning undercuts habitat-preservation efforts.