A Baboon Worked for the Railroad
Wikimedia Commons, Tiny Fox Lab

During the late 1800s a baboon was employed by the railroad as a signalman. He never once made a mistake and worked for the railroad until his death.Tiny Fox Lab Facts

Preview photo credit: Wikimedia Commons
Source: http://www.knoxvilledailysun.com/news/2012/august/jack-the-signalman.html