The bar chart tells all: That's how eighth graders at Bakgatle Community Junior Secondary School in Botswana can compare the HIV infection rate of older men and of teenage boys. Don Boroughs for NPR hide caption

itoggle caption Don Boroughs for NPR

Cecil the lion is shown walking in Zimbabwe's Hwange National Park in a YouTube video from July 9, 2015. Credit: Bryan Orford Bryan Orford/YouTube hide caption

itoggle caption Bryan Orford/YouTube

Trevor Noah will appear in Santa Monica on Tuesday, then head to the U.K. for the Edinburgh Festival Fringe in late August. Don't worry, he'll be back in time for his debut as the Daily Show host. Michael O'Brian/Flickr hide caption

itoggle caption Michael O'Brian/Flickr

President Obama and his delegation stand Monday during a welcome ceremony with Ethiopia's Prime Minister Hailemariam Desalegn at the National Palace in Addis Ababa, Ethiopia. Tiksa Negeri /Reuters /Landov hide caption

itoggle caption Tiksa Negeri /Reuters /Landov