squirrels

   You can read that some people consider animals to be more intelligent than human beings.  Some claim that cats are superior, intellectually, to people. Some say it's dogs, or even pigs. I vote for squirrels, based on scientific (empirical ) evidence. How many cats have ever outwitted a human? Oh, sure, they refuse to do human bidding, but that's not the same thing. It's just part of feline political philosophy, or something like it. Cats live in our homes. If they were smarter than we are, they would run the world by now.
      Squirrels, on the other hand, have outwitted many humans--particularly those who go to great trouble and expense to keep them out of bird feeders. They always get the birdseed, no matter what kind of squirrel baffles the bird-feeding person installs. If you watch them, it's as if they were playing a game, and mocking petty human efforts to thwart their desire for birdseed. Some people with bird feeders decide at the start that the bird feeder is a combination bird and squirrel feeder, saving themselves the humiliation of being outwitted by a squirrel, and publicly. Search "squirrel obstacle course" if you would like to see this in action.