Quick-thinking firefighters in Centennial, Colorado, used the audio from a YouTube video to help coax baby ducks out of a storm drain. Eight little ducklings were separated from their mom in the drain, and firefighters managed to pull four out. But the other four were hiding in a pipe, too afraid to come out. With their mom too far away to call for them, the firefighters thought fast and whipped out a smartphone with a YouTube video of a mama duck to lure them out instead.