Duo the Owl was known for his silly antics, reminding Duolingo users to complete their daily lessons. He debuted with the app ...

WASHINGTON — 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 ...

After hours of nail-biting agony, Duolingo users finally have answers to how the brand's beloved make-believe owl mascot named Duo "died" on Tuesday afternoon. The language-learning app shard a ...