Experts agree that the image on the left urges toilet users to flush toilet paper in the bowl rather than toss it in a trash can. As for the image on the right, it appears to offer a double warning: Don't stand on the seat, don't relieve yourself in the upper tank. Jennifer Wood/Courtesy of Doug Lansky hide caption
Francescangeli says boys sometimes work long hours and are often tasked with pushing carts to move rocks out of the mines. "Being a child in these places is really hard," he says. "If they have some time to spend in a free way, they like to be children. But their life doesn't permit them to be children so often." Simone Francescangeli hide caption
Hanna Barczyk for NPR Hanna Barczyk for NPR hide caption
How the U.S. Compares with the Lowest Rates of Violent Gun Deaths Worldwide NPR hide caption
Sister Bertha Lopez Chaves applies anti-inflammatory eyedrops to a migrant at a stadium in Mexico City where the caravan is resting. Her order is one of roughly 50 groups giving aid to the migrants in the Mexican capital. "We're just trying to deal with their basic needs so they can continue on," she says. James Fredrick for NPR hide caption
A nurse vaccinates a baby against rotavirus, a deadly form of diarrhea. Hector Retamal/AFP/Getty Images hide caption
Mogadishu's free ambulance service was founded in 2006 by Dr. Abdulkadir Abdirahman Adan after he saw people bringing relatives to the hospital by wheelbarrow. Abdulkadir Abdirahman Adan hide caption
Hauwa Mohammed Liman and Saifura Hussaini Ahmed Khorsa, two midwives who were captured by a terrorist group in March and subsequently killed. Courtesy of the Family hide caption
Activists in India protest against virginity tests in the states of Madhya Pradesh and Kerala in 2009. Raveendran/AFP/Getty Images hide caption
Researcher Claire McCarthy, also known as the "queen of dung," sits on a blanket with images of DNA, test tubes and beakers. Heather Kim/NPR hide caption
Surgeons perform a cesarean section. A new report raises concerns about rising rates of this procedure around the world, from Brazil to China. Getty Images hide caption
A team of medical workers don protective equipment before entering an Ebola Treatment Center in Beni, the epicenter of the outbreak in the Democratic Republic of the Congo. John Wessels/Getty Images hide caption
Relatives mourn before the funeral for family members who reportedly died by suicide at their home in Burari, India, this summer. Photo by Sanchit Khanna/Hindustan Times/Getty Images hide caption
Pigs in a pen in a village in Linquan County, China. Barcroft Media via Getty Images hide caption
A little girl fills two jerrycans with water in the Korangi slum in Karachi. Fetching water is a duty that often falls on very young children. Diaa Hadid/NPR hide caption
These mosquitoes have been fed a new artificial blood called "SkitoSnack." Kristina Gonzales hide caption
Sangita Magar bears the scars of an acid attack that took place three years ago. She was a plaintiff in a public interest case to change Nepal's law on acid and burn violence. Sajana Shrestha for NPR hide caption
bad sitting posture Lily Padula for NPR hide caption
At the main ambulance base in central Freetown, Sierra Leone, a government health worker disinfects ambulances with chlorine spray during the 2014 Ebola outbreak. Tommy Trenchard hide caption
A cluster of rotaviruses. The image is from a transmission electron micrograph and has been colored. Dr. Gopal Murti/Science Source hide caption
Bryn Sobott of the FREO2 Foundation presents his group's solution to pneumonia treatment — an oxygen delivery machine that can operate using the energy generated by running water — at a pitch competition organized by Saving Lives At Birth: A Grand Challenge for Development in Washington, D.C. Pearl Mak/NPR hide caption