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Chilean Quake May Have Shortened Earth Days
Posted on March 02, 2010 at 09:28:00 am
JPL research scientist Richard Gross computed how Earth's rotation should have changed as a result of the Feb. 27 quake

Ancient DNA Reveals Caribou History Linked to Volcanic Eruption
Posted on February 26, 2010 at 09:40:49 am
DNA recovered from ancient caribou bones reveals a possible link between several small unique caribou herds and a massive volcanic eruption that blanketed much of the Alaskan Yukon territory in a thick layer of ash 1,000 years ago

Grizzly Bears Move Into Polar Bear Habitat in Manitoba, Canada
Posted on February 23, 2010 at 09:11:28 pm
Biologists affiliated with the American Museum of Natural History and City College of the City University of New York have found that grizzly bears are roaming into what was traditionally thought of as polar bear habitat

Why Did Mammals Survive the 'K/T Extinction'?
Posted on February 23, 2010 at 03:38:45 pm
Picture a dinosaur. Huge, menacing creatures, they ruled the Earth for nearly 200 million years, striking fear with every ground-shaking stride. Yet these great beasts were no match for a 6-mile wide meteor that struck near Mexico 65 million years ago

Icy Moons of Saturn and Jupiter May Have Conditions Needed for Life
Posted on February 17, 2010 at 08:42:04 am
Scientists once thought that life could originate only within a solar system's "habitable zone," where a planet would be neither too hot nor too cold for liquid water to exist on its surface.

Long-Distance Migration Shapes Butterfly Wings
Posted on February 13, 2010 at 09:35:27 am
A University of Georgia study has found that monarch butterflies that migrate long distances have evolved significantly larger and more elongated wings than their stationary cousins.

Forests Are Growing Faster
Posted on February 03, 2010 at 09:40:22 am
A new study in the Proceedings of the National Academy of Sciences has found evidence that forests in the Eastern United States are growing faster than they have in the past 225 years. The study offers a rare look at how an ecosystem is responding to clim

White Roofs May Successfully Cool Cities
Posted on February 02, 2010 at 08:26:54 am
Painting the roofs of buildings white has the potential to significantly cool cities and mitigate some impacts of global warming, a new study indicates.

Venus Flytrap for Nuclear Waste?
Posted on January 28, 2010 at 09:33:44 am
Not every object is food to a Venus flytrap. Like the carnivorous plant, a new material developed at Northwestern University permanently traps only its desired prey, the radioactive ion cesium, and not other harmless ions like sodium.

Global Warming 'Feedback' Less Than Thought?
Posted on January 28, 2010 at 09:27:26 am
A new estimate of the feedback between temperature and atmospheric carbon dioxide (CO2) concentration has been derived from a comprehensive comparison of temperature and CO2 records spanning the past millennium.


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