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 app is literally "melting". Duolingo is usually represented by the logo of a green owl, which was initially chosen as a joke, because the brand's co-founder allegedly hated the colour green. However, according to some app users, the well-known Duolingo owl logo now looks like it's starting to melt. According to some insiders at the language app, this is actually a clever ploy to encourage people to click on the app and learn. So let's explore what's happening with Duolingo and why its creative team created a melting logo.