Hey - I like cats, but I don't think they are super smart. They are well suited to survival in their native environment, and their body-consciousness is much better developed than humans. I mean their bodily movement is better integrated and flows more gracefully.
In humans supreme grace requires concentration and mental discipline, so perhaps we are tempted to attribute impressive mental powers to cats - but I think for them grace is innate and unconscious. The same goes for horses - daft as brooms but hardwired to move with grace. I don't think they are worse as animals just because they leave abstract cognition to their monkey friends (ie us).