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.

This is one of the weirder promotions done by an app in recent months. The company even made a video showing Duo being killed by a Cybertruck.