In the northwestern United States, this crayfish would be just a friendly bit of local fauna. But in Scotland, it's an invasive species wreaking havoc on trout streams. Ari Shapiro/NPR hide caption

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The face in Jorge Rodríguez-Gerada's larger-than-life portrait is a composite of photos the artist took of young men from many racial backgrounds. Tami Heilemann/Department of the Interior hide caption

itoggle caption Tami Heilemann/Department of the Interior

The Royal Shakespeare Company is releasing albums of the music commissioned for its productions of many of the plays in this first collected edition of William Shakespeare's works. Leon Neal/AFP/Getty Images hide caption

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British Prime Minister David Cameron speaks with campaigners against female genital mutilation at the Girl Summit in London in July. Oli Scarff/Getty Images hide caption

itoggle caption Oli Scarff/Getty Images