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Thinner sea ice is getting pushed farther by Arctic winds, which makes polar bears walk more to stay in the same place, increasing their need for food. Learn mo…

Almost all southern right whale calves off the coast of Argentina’s Peninsula Valdez are being fed upon, some fatally, by kelp gulls, which was a rare occurrenc…

Researchers engineered bitumen—the sticky black stuff in asphalt—to release its own salt, to battle the formation of ice. Christopher Intagliata reports Learn m…

The numbers of large carnivores, especially leopards, are increasing in private lands and lands outside the protected-area systems in India, bringing new challe…

In his announcement today that he was taking executive action to require more gun sellers to be licensed and to do background checks on gun buyers, Pres. Barack…

More than a quarter century after the federal funding ban on needle exchange programs went into effect, it has quietly been almost completely lifted. Learn more…

Many non-African humans today have genes—which apparently made it into us via Neandertals—that ramp up resistance to pathogens, but bring on allergies, too. Chr…

Researchers were able to determine the genome of stomach bacteria that infected the famous Iceman at the time of his death, in the process giving us clues about…

Some set of numbers will definitely be drawn in the $1.3-billion Powerball Lottery, so all you have to do is make sure you hold every possible combination of nu…

Hippos eat meat more than had been thought, a practice that could explain their susceptibility to anthrax die-offs when they consume infected animals. Learn mor…