But Duo looked a bit different then. The original Duolingo logo featured a 2-D owl whose eyes and mouth spelled out "DUO." A year later, the first 3-D version of Duo was released with a realistic ...

But Duo looked different then. The original Duolingo logo featured a 2-D owl whose eyes and mouth spelled out “DUO.” A year later, the first 3-D version of Duo was released with a realistic ...

Duo, the green cartoon owl mascot for language learning app Duolingo, has mysteriously died ... of a paid brand partnership—just the natural evolution of Duo’s long-standing, unrequited ...

After hours of nail-biting agony, Duolingo users finally have answers to how the brand's beloved make-believe owl mascot named Duo "died" on Tuesday afternoon. The language-learning app shard a ...