Duo is apparently now dead. "It is with heavy hearts that we inform you that Duo, formally known as The Duolingo Owl, is dead," said a post on Instagram. "Authorities are currently investigating his cause of death and we are cooperating fully.

Duolingo’s Duo the Owl, an internet-famous big green bird, was killed by a Cybertruck in an apparent marketing stunt orchestrated by the language-learning app this week.

Duolingo, the language-learning app, killed off its owl mascot named Duo on Tuesday in what is assuredly some kind of publicity stunt. In fact, here were are writing about it. So, well played, Duolingo. Duolingo posted the news on social media.