Duolingo, the language-learning app, killed off its owl mascot named Duo on Tuesday in what is assuredly some kind of ...

Learning language app Duolingo posted to social media that its mascot, The Duolingo Owl, has passed away. "It is with heavy ...

Duolingo’s unhinged owl mascot Duo has frequently threatened death (jokingly, of course) to those who fail to complete their ...

Duo, Duolingo's popular owl mascot, has passed away suddenly. But what really happened to him and is he coming back?