Tree-ring data show history, pattern to droughts
Dendrochronologists have shown that tree-ring data produce a remarkably accurate history of droughts and other climate changes. Combined with reliable drought indices and historical descriptions of climate conditions, dendrochronology ...
Feb 18, 2013
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Melting polar ice could release old viruses
In 1999, Russian scientists famously dug a long-dead frozen woolly mammoth out of the Siberian permafrost. Other things lurking in the frozen earth may be more alive - and more dangerous. Scientists warn that global warming ...
Dec 12, 2012
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Flexible learning system allows humans to keep up with linguistic change, researchers find
(Phys.org)—Unlike other species, humans speak to each other in remarkably diverse ways. Some of our 6,000 to 8,000 languages use clicks (!Kung). Others don't differentiate between nouns and verbs (Straits Salish). Still ...
Nov 06, 2012
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Science denied: Why does doubt persist?
The sign in front of the tall display case at the Smithsonian Institution's Museum of Natural History lures visitors to "meet one of your oldest relatives." Inside stands a morganucodon, a mouse-like animal ...
Oct 12, 2012
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Turkey the birthplace of Hindi, English: study
Could the word for mother prove that Turkey was the birthplace of hundreds of languages as diverse as Hindi, Russian, Dutch, Albanian, Italian and English?
Aug 23, 2012
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Lao skull earliest example of modern human fossil in Southeast Asia
An ancient skull recovered from a cave in the Annamite Mountains in northern Laos is the oldest modern human fossil found in Southeast Asia, researchers report. The discovery pushes back the clock on modern ...
Aug 20, 2012
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Age of fossil teeth from Longgupo Cave determined with combined ESR/U-series
A Sino-France research team reported preliminary dating results of seven herbivorous fossil teeth from different archaeological layers of the lowest geological unit (C III) of Longgupo Cave site, Wushan County, ...
Aug 15, 2012
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Needed: a global bioinformatics system
Researchers track global dispersion of chickens throughout history using DNA
(Phys.org) -- The lowly chicken has had a remarkable impact on human history, providing a food source for innumerable people over the years. Modern scientists believe chickens (Gallus gallus) were first domest ...
Jul 30, 2012
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DNA analysis of ancient remains to uncover origin mysteries
Griffith University researchers will analyse DNA sequences from ancient human remains, some dating back 45,000 years, to determine the origins of the peoples of South-east Asia and Australia.
Jul 18, 2012
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Did climate change shape human evolution?
(Phys.org) -- As human ancestors rose on two feet in Africa and began their migrations across the world, the climate around them got warmer, and colder, wetter and drier. The plants and animals they competed ...
Apr 24, 2012
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Researchers discover what cancer cells need to travel
(PhysOrg.com) -- Cancer cells must prepare for travel before invading new tissues, but new Cornell research has found a possible way to stop these cells from ever hitting the road.
Feb 22, 2012
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Anthropologists clarify link between Asians and early Native-Americans
A tiny mountainous region in southern Siberia may have been the genetic source of the earliest Native Americans, according to new research by a University of Pennsylvania-led team of anthropologists.
Jan 26, 2012
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Is climate change altering humans' vacation plans?
Plants' and animals' seasonal cycles, such as flowering dates and migration patterns, have shifted in recent decades due to climate change.
Dec 06, 2011
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