Duolingo has left fans puzzled after announcing the "death" of its iconic owl mascot, Duo.

Duolingo, the language-learning app, killed off its owl mascot named Duo on Tuesday in what is assuredly some kind of publicity stunt. In fact, here were are writing about it. So, well played, Duolingo.

If you feel inclined to share, please also share your credit card number so we can automatically sign you up for Duolingo Max in his memory.’ The company, referencing online

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