Does carbon dating work dinosaurs

We have to understand those changes if we want to survive.

ABC News Videosource American Red Cross BBC Motion Gallery Corbis The Egypt Exploration Society Getty Images Cynthia Goldsmith Greg Hensley Productions Indiana State Museum and Historic Sites Iowa State University Library/Special Collections Department Keystone-Mast Collection, UCR/California Museum of Photography, University of California at Riverside National Archives The National Museum of Health and Medicine, Armed Forces Institute of Pathology, Washington, D. Sam Ogden/Photo Researchers Louie Psihoyos/Science Faction Quill Graphics San Francisco Chronicle US Naval Historical Center University of Michigan Papyrus Collection This material is based upon work supported by the National Science Foundation under Grant No. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Geologist Sam Bowring and paleontologist Doug Erwin think this hillside might be a scene of the crime. What kind of a disaster, other than an asteroid, could destroy so much life?

They're looking for clues to find out what caused the mysterious end of the geological time period known as the Permian. Let's say we go back there, we look around: no flowers, no flowering plants; there's not even dinosaurs. There probably wasn't a single animal on the planet with fur. Or would you need something from out of this world? One of the prime suspects is an ancient group of volcanoes, now dormant, whose remains lie in eastern Russia.

The bright pink color comes from another microbe, purple sulfur bacteria, that thrive in hydrogen sulfide.We all know that Earth is brimming with life, all kinds of life, as it has been for most of the last 600 million years. Earth becomes a very unfriendly place, and most life can't survive. We know it's happened over and over again, in the deep past, but we don't always know why.In a remote Nevada desert, a team of investigators is trying to solve an old murder mystery.The oceans heat up and lose their oxygen, nasty bacteria take over, burping out lots of poisonous gas. What really looks like a universal way that this has happened is this global warming, leading to this terrible gas chamber atmosphere killing off life in the ocean and land.It's not so much stuff from space that gets you; it's your own planet.

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