How accurate are dog-activity trackers?

There are countless gadgets available these days for people to track everything from our heart rate to our stress levels. So perhaps it's no surprise that there also are quite a few products that now claim to similarly monitor ...

Climate change in the balance

The United States and China together account for nearly 45 percent of global carbon dioxide emissions from fossil fuels, so their decisions have a major impact on the pace and magnitude of climate change.

Stalking the drones

Drones are becoming ubiquitous—they help bridge inspectors examine otherwise inaccessible spaces, monitor crop health for farmers, and assist search and rescue teams. They are also a boon to bad guys, from drug runners ...

Overfishing and modern-day slavery

You're about to make a sandwich with canned albacore tuna today, and thinking that it's all a good thing—nutritionists talk about the health benefits of eating more seafood, after all. One thing you probably didn't think ...

Scientists develop new materials that move in response to light

Researchers at Tufts University School of Engineering have developed magnetic elastomeric composites that move in different ways when exposed to light, raising the possibility that these materials could enable a wide range ...

Where the wild—and dangerous—dogs roam

When Yang Yu, VG16, arrived in the Yushu Tibetan Autonomous Prefecture in southern Qinghai, China, the first thing she noticed was the dogs. Huge and black with thick ruffs of fur like lions' manes, Tibetan mastiffs were ...

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