A Rooster, a Duck, and a Sheep Walk Into a Hot Air Balloon…

(via Atlas Obscura)  In the year 2018, we tend to take human flight largely for granted. But in the early days of aviation, even sending up a large balloon seemed like a potentially deadly bit of hubris. So when the first passenger-ready hot air balloons began taking to the skies, their designers decided to test them out with some animals first.