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Rethinking Early Atmospheric Oxygen: Possibility of More Dynamic Biological Oxygen Cycle on Early Earth Than Previously Supposed
April 24, 2013 Using a quantitative model, a research team of biogeochemists has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere, arguably the most important ... > full story -
Ice Tubes in Polar Seas -- 'Brinicles' or 'Sea Stalactites' -- Provide Clues to Origin of Life
April 24, 2013 Life on Earth may have originated not in warm tropical seas, but with weird tubes of ice -- sometimes called "sea stalactites" -- that grow downward into cold seawater near the Earth's poles, ... > full story -
Ancient DNA Reveals Europe's Dynamic Genetic History
April 23, 2013 Ancient DNA recovered from a series of skeletons in central Germany up to 7,500 years old has been used to reconstruct the first detailed genetic history of modern ... > full story -
Iron in Primeval Seas Rusted by Bacteria
April 23, 2013 Researchers have been able to show for the first time how microorganisms contributed to the formation of the world's biggest iron ore deposits. The biggest known deposits -- in South Africa and ... > full story -
Fish Was on the Menu for Early Flying Dinosaur
April 22, 2013 New research reveals that Microraptor, a small flying dinosaur, was a complete hunter -- able to swoop down and pick up ... > full story -
Geochemical Method Finds Links Between Terrestrial Climate and Atmospheric Carbon Dioxide
April 22, 2013 Scientists used a new chemical technique to measure the change in terrestrial temperature associated with a major shift in global atmospheric CO2 concentrations nearly 34 million years ago. Their ... > full story -
Anatomist Is Fleshing out Dinosaur Heads, Reaching People About Science
April 22, 2013 Accurately depicting dinosaur anatomy has come a long way since the science fiction films of the ... > full story -
Long-Lost Giant Fish from Amazon Rediscovered
April 22, 2013 Scientists have put aside nearly a century and a half of conventional wisdom with the rediscovery of a species of giant Amazonian fish whose existence was first established in a rare 1829 monograph ... > full story -
Formula Can Calculate a Person's Speed by Just Looking at Their Footprints
April 22, 2013 Scientists have designed an equation that provides a highly accurate estimate of an individual's speed based on stride length. They used data from professional athletes and walking and running ... > full story -
Forensic Sciences Are 'Fraught With Error'
April 22, 2013 Researchers review various high-profile false convictions and provide an overview of classic psychological research on expectancy and observer effects and indicates in which ways forensic science ... > full story
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