Fish and Wildlife Director Dan Ashe (left) and Secretary of the Interior Sally Jewell select confiscated illegal ivory to crush in an effort to halt elephant poaching and ivory trafficking in New York City's Times Square in June 2015. Bebeto Matthews/AP hide caption
Haddow was a talented artist. Here's his sketch of a monkey at his lab in Uganda. Alexander John Haddow/University of Glasgow hide caption
Assane Thiobane, 28, a motorbike taxi driver in Tambacounda, eastern Senegal, is saving up to leave for Europe, where he hopes to earn more money for himself and his family. If you die along the way, he says, that's your destiny. Ofeibea Quist-Arcton/NPR hide caption
The mystery disease in South Sudan has not been identified but is known to cause fever and unexplained bleeding. Above: an image of another hemorrhagic fever, Marburg virus, made with an electron microscope and then colorized. BSIP/UIG/Getty Images hide caption
At a 2015 press conference with President Obama in Addis Ababa, Ethiopian Prime Minister Hailemariam Desalegn asked the foreign press corps to "help our journalists to increase their capacity." Saul Loeb/AFP/Getty Images hide caption
Rwanda is known as "le pays des milles collines" -- the land of a thousand hills. Weather varies by altitude; for farmers, detailed forecasts can make a huge difference. Francesco Fiondella/International Research Institute for Climate and Society hide caption
A woman walks between two of the tents that house the hospital wards. Most of the camp's residents are women and children. David Gilkey/NPR hide caption
In this 2014 photo, prisoners are closely guarded at Chikurubi Maximum Prison in Harare, Zimbabwe. According to state media, at least 200 male inmates were freed from this prison as a result of President Robert Mugabe's pardons. Tsvangirayi Mukwazhi/AP hide caption
The price of tomatoes at Nigerian markets is going higher and higher as moths and their larvae wipe out much of the crop. George Osodi/Bloomberg via Getty Images hide caption
Morning at the MSF hospital compound in Bentiu, South Sudan. The two doctors, Jiske Steensma (left) and Navpreet Sahsi, sit in front of the tents that serve as living quarters for the international workers during their three-to-six-month stints. David Gilkey/NPR hide caption
A scene from the movie Timbuktu, nominated in 2014 for an Oscar for Best Foreign Language Film. Youtube hide caption
Flimsy straw shelters at the Assaga refugee camp house Nigerians and displaced people within Niger who have fled from Boko Haram raids. They say they are hungry and need more food aid. Ofeibea Quist-Arcton/NPR hide caption
Dehorned rhinos roam a private ranch in South Africa in February. The country's Supreme Court of Appeal has lifted a domestic ban on trading rhino horns. Mujahid Safodien/AFP/Getty Images hide caption
Nigerian president Muhammadu Buhari speaks with freed Chibok schoolgirl Amina Ali Nkeki, who is carrying her baby, as Borno state governor Kashim Shettima (C) looks on in Abuja, on May 19, 2016. Stringer/AFP/Getty Images hide caption
Lariat Alhassan had lots of great paint to sell but no office where she could meet clients. And then she heard an ad on the radio that seemed too good to be true. Courtesy of Lariat Alhassan hide caption
A member of Doctors Without Borders looks out over the general hospital in the Central African Republic's capital city, Bangui, in April 2014. Issouf Sanogo/AFP/Getty Images hide caption
A drone takes a practice flight in Virginia with medical supplies — part of a project to evaluate the flying machines for use in humanitarian crises. Pete Marovich/Bloomberg via Getty Images hide caption
