Naju Dorma, 73, and Lacuo Dorma, 66, belong to the Mosuo society in China, where grandmothers head up households. They're posing in traditional garb in their village of Luoshui.
While a day or two of complete rest may be necessary for kids after a concussion, any more could leave them feeling isolated and anxious, says Angela Lumba-Brown, a pediatric emergency medicine physician who helped shape new guidelines.
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A tsetse fly photographed in the zoological institute of the Slovak Academy of Sciences in Bratislava. Tsetse fly bites transmit the parasitic disease called sleeping sickness.
A McDonald's billboard in St. Paul, Minn., advertises in the Hmong language. A new study of first- and second-generation Hmong and Karen immigrants finds their gut microbiomes changed soon after moving to the U.S.
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Photographer Lorenzo Vitturi assembled this collage of products sold at the street market of Lagos Island, Nigeria, including the T-shirt that gave him the title for his new book: "Money Must Be Made."
Nirma, 16, plays with her friends. She is married but still lives with her parents and talks to her husband on the phone sometimes. She is nervous about the duties she'll have to take on when she does move in with her husband. At the moment, she hopes to graduate high school and eventually become a doctor.
Betsy Levy Paluck is a psychology professor at Princeton University. She ran a year-long experiment in Rwanda to see whether radio soap operas could be used to reduce prejudice.
John D. & Catherine T. MacArthur Foundation