Duolingo Owl Dies refers to a promotional campaign and viral marketing stunt by the language-learning app Duolingo, which announced that their mascot Duo,

Language learning app Duolingo revealed this week that the bright green owl that was the face of the company has "died," in a viral social media stunt. Duo, who was known for his menacing reminders to get people to keep up with their lessons on the app,

Duolingo’s green bird is no more. The company announced on Tuesday that Duo the Owl is ‘dead’ and ‘authorities’ are ‘investigating’. Soon, the internet was flooded with memes mourning the death of the cute but annoying mascot.