Continents influenced human migration, spread of technology
How modern-day humans dispersed on the planet and the pace of civilization-changing technologies that accompanied their migrations are enduring mysteries. Scholars believe ancient peoples on Europe and Asia moved primarily ...
Other Sciences / Archaeology & Fossils
Sep 19, 2011 |
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Fish to be rescued from Texas river amid drought
(AP) -- Wildlife biologists on Friday will evacuate two species of minnows from the shrinking waters of a West Texas river in the first of what could be several rescue operations involving fish affected by the state's worst ...
Sep 16, 2011 |
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Endangered cranes arrive in Taiwan from Japan
A pair of red-crowned cranes from Japan were flown to Taiwan on Wednesday in the country's first ever export of the endangered bird, zoo officials said.
Sep 14, 2011 |
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Shaping up: Controlling a stem cell's form can determine its fate
"Form follows function!" was the credo of early 20th century architects making design choices based on the intended use of the structure. Cell biologists may be turning that on its head. New research by a ...
Sep 13, 2011 |
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Japan to give Taiwan rare cranes
Japan will give a pair of red-crowned cranes to Taiwan this week in its first ever export of the endangered bird, Taipei zoo officials said Monday.
Sep 12, 2011 |
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Manipulative mothers subdue show-off sons
The gaudy plumage and acrobatic displays of birds of paradise are a striking example of sexual selection, Charles Darwin's second great theory of evolution. But new research shows that this powerful process may collapse when ...
Sep 12, 2011 |
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Bird pollinated plant mixes it up when it comes to sex
Across the western Cape of South Africa can be found small plants in the Iris family called Babiana. Flitting between them are sunbirds, small colourful birds like the African version of hummingbirds, that d ...
Sep 06, 2011 |
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Monitoring ground-level ozone from space
Satellite views of the Midwestern United States show that ozone levels above 50 parts per billion (ppb) along the ground could reduce soybean yields by at least 10 percent, costing more than $1 billion in lost crop production, ...
Aug 29, 2011 |
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Little plant has big stories to tell
(PhysOrg.com) -- Understanding which genes control traits, like when a plant will flower, what soil type is best or its ability to persist in drought conditions provides insight into the ability of plants ...
Aug 29, 2011 |
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Limited iron availability shown to exacerbate coral bleaching
(PhysOrg.com) -- It is widely held that coral bleaching occurs when temperatures and solar radiation are high, overwhelming antioxidant defenses in the algal endosymbionts and their coral hosts. Little understood ...
Aug 26, 2011 |
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Molecular chaperones traffic signaling proteins between cells in plant stem-cell maintenance pathway
Like all living things, plants depend for their growth and sustenance on elaborate signaling networks to maintain stem cells, cells that have an almost magical regenerative capacity. The signals sent through these networks ...
Aug 25, 2011 |
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Look, up in the sky - it's Aeroecology
There are ecologists who study land, and ecologists who study the ocean -- but who looks up and studies the air that circles the entire planet? Until recently, not many.
Aug 24, 2011 |
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A question of gene silencing
When investigating cancer cells, researchers discovered numerous peculiarities: Particular RNA molecules are present in large numbers, particular genes are overactive. Do these characteristics have a relation to cancer? Do ...
Aug 24, 2011 |
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How many species on Earth? 8.7 million
Eight million, seven hundred thousand species (give or take 1.3 million).
Aug 23, 2011 |
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Altruistic wasps? More like plain self-interest
Social insects may not love their fellow bugs as much as once believed.
Aug 23, 2011 |
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