duo (duolingo)

Duolingo's green owl mascot, infamous for its usage in memes, where the mascot goes far beyond just pestering a user through smartphone notifications to ensure they don't slack off in their language studies in the app.

On February 11, 2025 the company announced the mascot's death. On February 26, 2025 they announced their mascot was alive and that he had faked his own death.