GREG GRAFFIN is the lead singer and a songwriter in the punk band Bad Religion. He obtained a masters and Ph.D. in Zoology at Cornell University and a masters in Geology from UCLA. He has lectured at UCLA and Cornell where currently he teaches evolution. He is also the author of Evolution (with Steve Olson) and Population Wars. When he's not on tour, he's with his family at places he considers home: upstate New York, Southern California, or Wisconsin.