Ancient yucca chaws yield ancient DNA

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Prehistoric quid (wads of crumpled masticated shredded leaves) from dry caves in the American Southwest. Photo by Steven LeBlanc
Prehistoric quid (wads of crumpled, masticated, shredded leaves) from dry caves in the American Southwest. Photo by Steven LeBlanc

In a groundbreaking study, two Harvard scientists have for the first time extracted human DNA from ancient artifacts. The work potentially opens up a new universe of sources for ancient genetic material, which is used to map human migrations in prehistoric times.


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Over 200 narwhal trapped in Canadian ice

Nov 21, 2008 | User rating: not rated yet
At least 200 narwhal whales in Canada's Arctic, trapped by winter ice that is setting in around them and facing starvation or suffocation, must be culled, officials said Friday.

Scientists identify blood component that turns bacteria virulent

Nov 21, 2008 | User rating: not rated yet
Scientists from the Scripps Research Institute have discovered the key chemical that signals Bacillus anthracis, the bacterium that causes anthrax, to become lethal. This finding opens up new avenues of exploration ...

Portuguese dinosaur tail's sale sparks controversy

Nov 21, 2008 | User rating: not rated yet
A Portuguese bulldozer driver has sparked controversy in his country by up putting a dinosaur fossil he found 10 years ago for sale on the Internet.

Teens' Online Safety Improved by Education, Research Shows

Nov 21, 2008 | User rating: not rated yet
Think protecting young teenagers on the Internet is important? Then be sure they think it's important, too, according to a forthcoming article in IEEE Transactions on Professional Communication.

Bulgarian archaeologists unearth ancient chariot

Nov 21, 2008 | User rating: not rated yet
(AP) -- Archaeologists have unearthed an elaborately decorated 1,800-year-old chariot sheathed in bronze at an ancient Thracian tomb in southeastern Bulgaria, the head of the excavation said Friday. "The ...
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