Meteor/Meteorite News- YD Mammoth Demise 20NOV09

from Google News: Dung dating illuminates mammoth mystery Nature.com (subscription) - ‎12 分前‎ The disappearance of the huge herbivores that once roamed North America triggered a massive change in the environment with new trees and more fires. ... Scientists zero in on reason for mammoths' demise Los Angeles Times - ‎2 時間前‎ The sediment beneath an Indiana lake is providing clues. One thing is clear: A meteor didn't kill off the mammoths, mastodons and other large plant-eaters, ... Mammoths not killed by human spears ABC Online - ‎5 時間前‎ By Madeleine Genner for The World Today They were some of the biggest mammals to walk the earth but it seems woolly mammoths were not killed off by humans ... New Data Shed Light on Large-Animal Extinction New York Times - ‎17 時間前‎ By NICHOLAS WADE Whenever modern humans reached a new continent in the expansion from their African homeland 50000 years ago, whether Australia, ... Dung helps reveal why mammoths died out BBC News - ‎17 時間前‎ By Victoria Gill Mammoth dung has proved to be a source of prehistoric information, helping scientists unravel the mystery of what caused the great mammals ... Extinction of giant mammals altered landscape msnbc.com - ‎17 時間前‎ By Jeanna Bryner The last breaths of mammoths and mastodons some 13000 years ago have garnered plenty of research and just as much debate. ... Dung Fungus Provides New Evidence in Mammoth Extinction Wired News - ‎18 時間前‎ By Betsy Mason The latest evidence in the disappearance of the mammoths, and nine other North American species weighing over a ton, comes from fossilized ... After Mastodons and Mammoths, a Transformed Landscape Science Daily (press release) - ‎19 時間前‎ ScienceDaily (Nov. 20, 2009) — Roughly 15000 years ago, at the end of the last ice age, North America's vast assemblage of large animals -- including such ... Sophisticated hunters not to blame for driving mammoths to extinction guardian.co.uk - ‎20 時間前‎ Giant animals such as the woolly mammoth were already facing extinction by the time humans had developed more lethal weapons. Photograph: Corbis/Royal BC ... Spores in Mastodon Dung Suggest Humans Didn't Kill Off Ancient Mammals Discover Magazine - ‎2 時間前‎ A fungus found within ancient mammoth dung is providing scientists with clues about how the large ancient mammals collectively known as megafauna went ... Mammoths weren't killed off by meteor TG Daily - ‎5 時間前‎ By Emma Woollacott Friday, 20 November 2009 04:55 A new study into the North American landscape 15000 years ago has debunked several theories about why ... Study Provides Insight into Extinction Of Large Animals The Money Times - ‎8 時間前‎ At the University of Wisconsin-Madison, Scientists have advanced towards solving the mystery of extinction of mammoths, mastodons, and other large animal ... Poop evidence exonerates humans in mammoth mystery World Science - ‎13 時間前‎ The question of how huge animals like the mammoth, mastodon, and ground sloth went extinct—and how their disappearance from North America affected ... Blame the Mammoths Journal Watch - ‎18 時間前‎ With the help of a dung fungus, scientists have figured out that the disappearance of mammoths, mastodons, and other large animals likely caused dramatic ... UW scientists creep closer to solving mystery of mammoths' extinction Milwaukee Journal Sentinel - ‎19 時間前‎ By Mark Johnson of the Journal Sentinel Scientists at the University of Wisconsin have taken an important step toward solving the mystery of what wiped out ... Was there a Stone Age apocalypse or not? New Scientist - ‎19 時間前‎ Was there a Stone Age apocalypse or not? One narrative has it that about 13000 years ago a comet blasted North America , wiping out the continent's ...

Mass Extinctions- Medea Hypothesis 19MAY09

Peter Ward on mass extinctions
http://www.ted.com/index.php/talks/peter_ward_on_mass_extinctions.htmlhttp://www.youtube.com/watch?v=3lYN_lXU9PA

Speakers Peter Ward: Paleontologist
http://www.ted.com/index.php/speakers/peter_ward.html

The Medea Hypothesis: Is Life on Earth Ultimately Self-Destructive? by Peter Ward
http://press.princeton.edu/titles/8855.htmlhttp://press.princeton.edu/titles/8855.html#TOC“

Using the latest discoveries from the geological record, he argues that life might be its own worst enemy.”

“According to the Medea hypothesis, it does. Ward demonstrates that all but one of the mass extinctions that have struck Earth were caused by life itself. He looks at our planet's history in a new way, revealing an Earth that is witnessing an alarming decline of diversity and biomass--a decline brought on by life's own "biocidal" tendencies.”