Duolingo, the popular language-learning app, appears to have developed an interesting new feature, according to some users. Social media has been alight with language learners claiming their Duolingo ...

It's the go-to language app for millions of people around the world. But it appears that Duolingo has crashed this afternoon.

Call it a miracle, or a marketing ploy: Duo the owl is back from the dead. Two weeks after announcing the murder of its sassy green mascot, the language-learning platform Duolingo now says he's fine — ...