News
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Meditation changes
People who meditate display particularly strong immune responses and brain activity that has been linked to emotional improvements, according to preliminary data.
- Paleontology
Oh, what a sticky web they wove
A look inside a piece of 130-million-year-old amber has revealed a thin filament of spider silk with sticky droplets that look just like those produced by modern spiders.
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The Naked Truth? Lice hint at a recent origin of clothing
A study of genetic differences among human lice hints at the origin of clothing.
- Earth
Clearing the Air: Ozone-killing bromine is on the decline
Chemical analyses of Earth's lower atmosphere show that the overall concentration of bromine, a component of some potent ozone-destroying chemicals, has dropped by 5 percent since peaking in 1998.
