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Science News for November 23, 2007


Bear hunting altered genetics more than Ice Age isolation

A recent study published in Molecular Ecology reveals that the genetic distribution of brown bears was not solely determined by Ice Age isolation. Instead, human hunting and land use have had a significant impact on their genetics, allowing them to survive and thrive in central Europe during the coldest periods. This new understanding ...

SourceUppsala University·JournalMolecular Ecology·DateNov 23, 2007

Environmental monitoring goes high-tech in Switzerland

The Swiss Experiment brings together experts to tackle climate change, natural hazards, and sustainable resource use with innovative data collection and analysis. The project aims to improve models predicting floods, avalanches, and landslides, while documenting environmental degradation and change.

SourceEcole Polytechnique Fédérale de Lausanne·DateNov 23, 2007
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Dunes, climate models don't match up with paleomagnetic records

Researchers challenge the prevailing view that the Colorado Plateau shifted north during the Jurassic Period, citing evidence from ancient dunes and climate modeling. The findings indicate the area remained at the equator, sparking a new conundrum in the scientific community.

SourceUniversity of Nebraska-Lincoln·JournalScience·DateNov 23, 2007

Scientists melt million-year-old ice in search of ancient microbes

Researchers have successfully thawed ice from Lake Vostok, an ancient lake beneath Antarctica, in search of microorganisms that may hold secrets to surviving in extreme environments. The team aims to gain insights into how these tiny organisms adapted to live in darkness and isolation.

SourceUniversity of Delaware·DateNov 23, 2007

Rebuilding the evolutionary history of HIV-1 unravels a complex loop

Researchers have developed a new method to reconstruct the evolutionary history of the HIV-1 V3 loop, revealing biologically dependent amino acids that form 'co-evolving' ties across the protein. This study advances understanding of HIV-1 evolution and identifies potential targets for future research.

SourcePLOS·JournalPLOS Computational Biology·DateNov 23, 2007
Fluke 87V Industrial Digital Multimeter

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