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Contents
- Mystery Meteorite: The case for (and against) a rock from Mercury
- Hard Times for Theorists in a Post-Higgs World: The Large Hadron Collider’s big success leaves no clear avenue for new physics
- In the Eye of the Tiger: Global spread of Asian tiger mosquito could fuel outbreaks of tropical disease in temperate regions
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Contents
- Infection time: Disease is more severe when it hits in the morning, at least in mice
- Explainer: Our bodies’ internal clocks: Biological clocks determine hunger, sleepiness and other daily rhythms
- Flu in the air: Germs tiny enough to pass through surgical masks may cause half of all cases
Instead of relying on observable traits to guess evolutionary relationships among species, scientists can now go straight to the source: The DNA that is marked by evolution. Here’s one simple way to reconstruct the history of bird species using genetic sequences. (Although the evolutionary relationships shown here are real, the specific genetic codes and mutations shown are representative and are not based on actual DNA data.)
Credit: Source: Laura Sanders, Graphic: Avik Nandy
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Even if science can’t make life longer, perhaps a pill can make a long life better
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The gene patenting decision from a plaintiff’s point of view
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With everyday materials, two research teams conceal ordinary objects
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In mating display, male birds match moves to songs
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Coverage of the 2013 American Association for the Advancement of Science meeting
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The Year in Science 2012
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Three-part series on the scientific struggle to explain the conscious self
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Tables of contents, columns and FAQs on SN Prime for iPad
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By Leila Schneps and Coralie Colmez
Review by Janet Raloff
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