If your cat constantly sends pens, glasses, or decorations tumbling off shelves, you are not alone.

A cat never met an object at rest that it didn't want to knock over an edge—and that's science! At least, according to the dad of YouTube cats Porky Belly and Jim. "The laws of cat physics say, 'if an ...

Add Yahoo as a preferred source to see more of our stories on Google. If your cat constantly sends pens, glasses, or decorations tumbling off shelves, you are not alone. While it may seem like your ...