Scientists find ancient Tibetan altitude gene

Tibetans can thank an extinct human relative for providing a gene that helps them adapt to the high altitude, according to a study.

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Tibetans living on the ‘‘roof of the world’’ can thank an extinct human relative for providing a gene that helps them adapt to the high altitude, a study suggests.

 A woman walks with a plastic bag in Sacramento, Calif.

Altered Habitats

Plastic bag ban stalled in state legislature

A move to make Massachusetts the first state to ban plastic shopping bags caused a flurry of excitement in some circles last year. Since then … silence.

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Nahant marine center researcher discovers that mud crabs can hear

Mud crabs can hear, and Northeastern University researcher A. Randall Hughes has proved it.Her findings, published in a scientific journal last month, may seem a bit ho-hum — how many of us give the tiny invertebrates a second thought? — but they are a revelation to those who study coral reefs.Hughes admitted that neither she nor other academic researchers had given much consideration to the crabs’ hearing ability, but a question from a layman sparked her curiosity. Now, the findings of Hughes and her research team (which includes her husband, fellow Northeastern professor David Kimbro, and marine acoustics specialist David Mann) have provided insight into the ecological community found on the reefs.

Scientists publish a deep look at DNA mutations in lung cancer

The large and comprehensive study of the most common kind of lung cancer could help scientists devise new treatments.

Decades-old vials of smallpox found in storage room

The freeze-dried smallpox samples were found in a cardboard box in a Maryland research center.

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Ideas

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/07/02/BostonGlobe.com/Ideas/Images/globe_welcome_internet_FINAL.jpg Dawn of the Web: an oral history

How did it feel when the Internet first arrived on your desk? What does a tidal wave look like from shore?

Instagram

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A live stream of Instagram posts from The Boston Globe photo department.