"Officials have identified the cause of death," Duolingo said. "Thank you for holding space for Dualingo." The mystery was solved around 12:30 p.m. Wednesday afternoon when the co ...

And so, in honor of the bright green owl, we've rounded up all of the best memes to pay our respects. Have fun! Disclaimer: ...

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