Volcanoes Are Latest Suspect in Dinosaur Extinction Dating of ancient giant lava flows yields new "suspect" in the hunt for the "dinosaur killing" event, study says. Volcanoes, not an asteroid impact, may have done them in, researchers say. by Jim Algar
Science Smithsonian Documentary 'Mass Extinction: Life at the Brink' a Scary Warning about How Humans Are Accelerating Their Own Destruction by Rhodi Lee
Science World is on the verge of extinction and we're the cause (or we can help prevent it) by James Maynard
Science Tiny microbes nearly wiped out life on Earth: It's the end of the world as we know it by James Maynard