A 33,000-year-old skull of a "wolf on the way to becoming a dog" was found in a Siberian cave. Evolutionary Biologist Susan Crockford, co-author of a study about the skull in PLoS ONE, discusses why the discovery challenges common beliefs about dog domestication.
Community opposition helped sink plans for a nuclear waste repository in Nevada's Yucca Mountain. Meanwhile, thousands of tons of radioactive waste are piling up at temporary storage sites around the country. As the U.S. once again looks for a new permanent storage site, an expert panel says local buy in will be key.
In his State of the Union speech, President Obama called for more domestic oil and gas production, saying that "a future where we're in control of our own energy" is within reach, where the nation's security and prosperity would not be so closely linked to unstable parts of the world.
Researchers found that children whose blood contained high levels of chemicals used in nonstick coatings and stain-resistant fabrics were less responsive to vaccination. The finding suggests, but doesn't prove, that these chemicals may make some children more vulnerable to infectious diseases.
California became the only state to implement greenhouse gas emission controls in January 2012, but the debate there over climate change continues. University of California history and science professor Naomi Oreskes says the time for bickering over whether or not climate change is real is over.
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