Credit: Wiki Commons/public domain You may think your dog or cat is smart and amazing, but it's got nothing on a horse that drew huge crowds in Germany and throughout Europe over a century ago.
The horse, named Clever Hans, was known around the world for his inexplicable abilities. William von Osten put his amazing horse on display in 1891, and together he and Hans treated crowds to sights never before seen.
Not only could Hans count - something no other animals were said to do - but he could also tell time, read and spell (in German, of course).
Since the horse couldn't speak (that would have been a remarkable feat indeed), he communicated mainly by stamping one foot on the ground. If Hans was asked what five and two added up to, he would tap seven times; if he was asked what day came after Monday, he would be told to tap once for Tuesday, twice for Wednesday, and so on.
PHOTOS: Five Historic Hoaxes
Clever Hans was examined by a group of researchers led by a philosophy professor named Carl Stumpf. What was the secret - if indeed there was one? Was it all a hoax or trick? Or was this a truly unique horse, a pillar of equine intellect that could rival any schoolchild - or at least an elected official?