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 ...

Learning language app Duolingo posted to social media that its mascot, The Duolingo Owl, has passed away. "It is with heavy hearts that we inform you that Duo, formally known as The Duolingo Owl ...