Without lignin, there would be no woody plants, no wood, no coal, no charcoal, no fire, no pottery, and certainly no iron or metallurgy.
Self-evidently, the gravity on the surface of a planet limits the maximum size of large terrestrial organisms.
What can we infer about the cause of the universe, about what brought it into being?
David Barash is an evolutionary biologist known for delivering a yearly talk to his students disabusing them of the idea that science can be reconciled with religious faith.
Steve Meyer was in Southern California recently and stopped by the campus of Biola University where he sat down for a podcast conversation.