At various times, life on earth has come close to being erased. Paleontologist Peter Ward explains what we can learn from previous mass extinctions. Are We Headed Into Another Mass Extinction? Part 3 ...

The big-bang theory has plenty of competition when it comes to killing off the human race, says nationally known paleontologist Peter Ward. Among other more imminent threats are overpopulation, global ...

In the past 50 years it has become commonplace to think of Earth as a nurturing place, straining mightily to maintain equilibrium so that life might continue and flourish. The Gaia hypothesis, named ...

Paleontologist and astrobiologist Peter Ward studies events such as the Cretaceous-Tertiary extinction event which made dinosaurs go extinct. He is a Professor at University of Washington where he ...