India, Feb. 13 -- The green owl aka Duo, the mascot for the language learning app, Duolingo, has been declared dead. In a statement, they wrote: "For years, he tirelessly reminded millions to do their language lessons - sometimes with gentle nudges, sometimes with sheer, unhinged persistence... He probably died waiting for you to do your lesson, but what do we know." In a TikTok video, Lily and Zari, two characters, carried Duo's coffin and placed it in the bed of a pick-up truck.htc...