How do you say "resurrected" in your favorite Duolingo-offered language? Duo the owl, mascot of the Duolingo language-learning app, was recently killed off by the company -- but on Feb.

Nearly two weeks after Duolingo announced that their mascot Duo—formally known as The Duolingo Owl—had “died,” the language learning app’s nocturnal bird made a surprise return.

A mischievous cat sent its owner on a wild goose chase after it hid among a family of owls. A funny video shows the cat perched among a mother owl and her three owlets in their nest—almost ...