Duo was fatally hit by a Tesla Cybertruck, the language-learning company announced this week. The snarky owl has been the face of Duolingo for over a decade. Why his sudden demise, and what's next?

Duo’, the Duolingo mascot known for his guilt-tripping ways to get people to learn new languages, is dead. He was 3,025 years old. His death was confirmed by the language learning company’s social media accounts on Tuesday.