Look, you can provide me with countless examples but it doesn't change my opinion on the matter^^ All of those are proof to our intelligence as we have defined it ourselves, that doesn't count. It's like running a contest for being the best player in a game and being your own judge claiming that you are the best. It is simply biased.
If we had an alien species evaluate that rats would be the most intelligent species on earth, would that make sense to you? Probably not, since they would also have different standards for evaluating intelligence. It just doesn't make sense to assume this.
Anyway, all species currently living on this planet have one thing in common, that is being alive and not extinct. So, one could argue that all of them are as intelligent or as adapted as they need to be in order to survive on this planet. I don't think there is any value in determining which is the most "intelligent"...
If it serves any purpose, it is to satisfy human arrogance in their thought of superiority :P: