A girl in a park in Managua, Nicaragua. The country topped the list for gains in happiness. Nicolas Garcia/AFP/Getty Images hide caption

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Global Ranking Of Happiness Has Happy News For Norway And Nicaragua

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An African giant pouched rat sniffs for traces of land mine explosives at a training facility run by APOPO, a nonprofit that trains the rats to detect both tuberculosis and land mines. Not only does it have an excellent nose, but it can jump 5 feet in the air. Carl De Souza/AFP/Getty Images hide caption

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A gay man with HIV stands in a clinic in Dar es Salaam, Tanzania. He's been afraid to pick up his medicine because of the government's crackdown on the gay community. Kevin Sief/The Washington Post/Getty Images hide caption

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Tucker Lane and his mother, Lynn Cash, sit in the wooded backyard of his home in West Barnstable, Mass. Kayana Szymczak for NPR hide caption

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Kayana Szymczak for NPR

Beyond Lyme: New Tick-Borne Diseases On The Rise In U.S.

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A child holds an umbrella as refugees at a refugee camp in Palorinya, Uganda. Dan Kitwood/Getty Images hide caption

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14-Year-Old Who Fled South Sudan: 'They're Killing Women, Children'

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Medics tend to an Iraqi counterterrorism fighter injured in a clash with ISIS forces near the village of Bazwaya, on the eastern edge of Mosul. Bulent Kilic /AFP/Getty Images hide caption

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No One Was Prepared To Care For So Many Wounded In Mosul

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On the list of pathogens (from left): Staphylococcus aureus (causes skin infections, pneumonia, bloodstream infections), Pseudomonas aeruginosa (causes blood infections, pneumonia, infections after surgery) and Neisseria gonorrhoeae (causes the sexually-transmitted disease gonorrhea). NIAID; Scott Chimileski and Roberto Kolter, NIH Image Gallery/Flickr; NIAID hide caption

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NIAID; Scott Chimileski and Roberto Kolter, NIH Image Gallery/Flickr; NIAID