Science Now

Science Now Discoveries from the world of science and medicine
First U.S. case of superbug resistant to last-resort drug is reported

For the first time, a U.S. patient has been infected with bacteria resistant to an antibiotic used as a last-resort treatment, scientists said Thursday.

The patient — a 49-year-old woman in Pennsylvania — has recovered. But health officials fear that if the resistance spreads to other bacteria, the country soon may see supergerms impervious to all known antibiotics.

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Health experts question federal study linking cellphones to brain tumors

New results from a closely watched government study show why the World Health Organization has flagged mobile phones as a possible source of cancer, but they don’t make a strong case that the devices actually cause cancer in people, according to experts who have reviewed the findings.

Researchers from the U.S.

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Why male fruit flies have such enormous sperm

Don't underestimate the manliness of the humble fruit fly: He may be small, but his sperm is not.

In fact, the sperm of the fruit fly Drosophila bifurca can stretch up to nearly 6 centimeters in length. That's several times the length of the male fruit fly himself, and about 1,000 times the length of a human sperm cell.

If this massive sperm length seems unusual, that's because it is. The D.

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1.2 million college students drink alcohol on a typical day, and more than 703,000 use weed

There’s a lot more going on at colleges these days than just studying.

On any given day, 1.2 million full-time students are drinking alcohol and more than 703,000 are using marijuana, according to a report released Thursday by the U.S.

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Climate change is happening on Mars, where an ice age is coming to an end

By examining swirling patterns left in ice topping the Red Planet’s north pole, scientists using radar data from NASA’s Mars Reconnaissance Orbiter have put together an unprecedented look into our rusty neighbor’s most recent ice age.

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New method for predicting breast cancer risk suggests about 30% of cases could be prevented

Ask almost any health-conscious woman who’s mustered under a giant pink ribbon, and she’ll tell you what an American woman’s chances are of getting breast cancer in her lifetime: 1 in 8.

But that’s a national average. And as the relative influence of genes, behavior and environmental factors on cancer risk come into clearer focus, women increasingly have begun to understand that they’re not all average.

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