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Oldest DNA ever recovered suggests earth was warmer than previously believed

A team of international researchers has collected the oldest ever recovered DNA samples and used them to show that Greenland was much warmer at some point during the last Ice Age than most people have believed.

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1. One species' entire genome discovered inside another's
   08-30-2007 · EurekAlert!
   Scientists at the University of Rochester and the J. Craig Venter Institute have discovered a copy of the entire genome of a bacterial parasite residing inside the genome of its host species.The finding, reported in today's Science, suggests that lateral gene transfer -- the movement of genes between unrelated species -- may happen much more frequently between bacteria and multicellular organisms than scientists previously believed, posing dramatic implications for evolution.
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2. Earth's getting 'soft' in the middle
   01-24-2008 · EurekAlert!
   A new study suggests that material in part of the lower mantle has unusual electronic characteristics that make sound propagate more slowly, suggesting that the material there is softer than previously thought. The results call into question the traditional techniques for understanding this region of the planet. The authors, including Alexander Goncharov from the Carnegie Institution's Geophysical Laboratory, present their results in the Jan. 25 issue of Science.
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3. Two studies on bee evolution reveal surprises
   12-08-2006 · EurekAlert!
   A 100-million-year-old bee fossil and a DNA study suggest that bees may have originated in the Northern rather than the Southern Hemisphere and from a different family of bees than previously thought.
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4. Toxoplasma infection increases risk of schizophrenia, study suggests
   01-16-2008 · EurekAlert!
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5. Penn researcher shows that DNA gets kinky easily at the nanoscale
   11-03-2006 · EurekAlert!
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6. National blood donor pool significantly smaller than previously thought
   07-31-2007 · EurekAlert!
   According to a new study in Transfusion, the number of individuals in the US who are eligible to donate blood may be smaller than previously believed -- approximately 60 million fewer people. The new figures suggest that only 37 percent of the US population is currently eligible to donate blood, and with anticipated demographic changes, that percentage is likely to drop.
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7. Female Antarctic seals give cold shoulder to local males
   02-07-2007 · EurekAlert!
   Female Antarctic fur seals will travel across a colony to actively seek males which are genetically diverse and unrelated, rather than mate with local dominant males. These findings, published in this week's Nature, suggest that female choice may be more widespread in nature than previously believed and that such strategies enable species to maintain genetic diversity.
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8. Cellular Contortionist
   01-13-2007 · Science News Online
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9. Species thrive when sexual dimorphism broadens their niches
   05-09-2007 · EurekAlert!
   Some Caribbean lizards' strong sexual dimorphism allows them to colonize much larger niches and habitats than they might otherwise occupy, allowing males and females to avoid competing with each other for resources and setting the stage for the population as a whole to thrive. The finding, reported this week in the journal Nature, suggests sex differences may have fueled the evolutionary flourishing of the Earth's wildly diverse fauna in a way not previously appreciated by scientists.
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10. Far-out findings -- New analysis suggests planets were formed from a giant mix
    12-14-2006 · EurekAlert!
    Our Solar System may have been created in a gigantic mixing process far more extensive than previously imagined, according to research published today.The findings, reported in the journal Science, come from the first analysis of dust fragments from Comet Wild-2, captured by NASA's Stardust spacecraft and brought to Earth in January 2006.
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